diff --git a/BUILD.gn b/BUILD.gn
index 511e6ec142..172026fdda 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -190,8 +190,8 @@ run_node("gen_declarations") {
     "js/compiler.ts",
     "js/console.ts",
     "js/deno.ts",
+    "js/dispatch.ts",
     "js/errors.ts",
-    "js/fbs_util.ts",
     "js/fetch.ts",
     "js/global-eval.ts",
     "js/globals.ts",
@@ -226,8 +226,8 @@ run_node("bundle") {
     "js/assets.ts",
     "js/compiler.ts",
     "js/console.ts",
+    "js/dispatch.ts",
     "js/errors.ts",
-    "js/fbs_util.ts",
     "js/fetch.ts",
     "js/fetch_types.d.ts",
     "js/globals.ts",
diff --git a/js/fbs_util.ts b/js/dispatch.ts
similarity index 95%
rename from js/fbs_util.ts
rename to js/dispatch.ts
index 21a3aa04da..8c2514c32b 100644
--- a/js/fbs_util.ts
+++ b/js/dispatch.ts
@@ -1,5 +1,4 @@
 // Copyright 2018 the Deno authors. All rights reserved. MIT license.
-// TODO Rename this file to //js/dispatch.ts
 import { libdeno } from "./libdeno";
 import { flatbuffers } from "flatbuffers";
 import * as fbs from "gen/msg_generated";
@@ -12,7 +11,6 @@ const promiseTable = new Map<number, util.Resolvable<fbs.Base>>();
 export function handleAsyncMsgFromRust(ui8: Uint8Array) {
   const bb = new flatbuffers.ByteBuffer(ui8);
   const base = fbs.Base.getRootAsBase(bb);
-
   const cmdId = base.cmdId();
   const promise = promiseTable.get(cmdId);
   util.assert(promise != null, `Expecting promise in table. ${cmdId}`);
@@ -38,9 +36,8 @@ export function sendAsync(
   return promise;
 }
 
-// TODO Rename to sendSync
 // @internal
-export function send(
+export function sendSync(
   builder: flatbuffers.Builder,
   msgType: fbs.Any,
   msg: flatbuffers.Offset
diff --git a/js/fetch.ts b/js/fetch.ts
index 5e1d5c5b09..e3aa052f92 100644
--- a/js/fetch.ts
+++ b/js/fetch.ts
@@ -8,7 +8,7 @@ import {
   notImplemented
 } from "./util";
 import { flatbuffers } from "flatbuffers";
-import { sendAsync } from "./fbs_util";
+import { sendAsync } from "./dispatch";
 import * as fbs from "gen/msg_generated";
 import {
   Headers,
diff --git a/js/main.ts b/js/main.ts
index 55dca2858c..f9cd6d1406 100644
--- a/js/main.ts
+++ b/js/main.ts
@@ -6,13 +6,13 @@ import * as os from "./os";
 import { DenoCompiler } from "./compiler";
 import { libdeno } from "./libdeno";
 import { argv } from "./deno";
-import { send, handleAsyncMsgFromRust } from "./fbs_util";
+import { sendSync, handleAsyncMsgFromRust } from "./dispatch";
 
 function sendStart(): fbs.StartRes {
   const builder = new flatbuffers.Builder();
   fbs.Start.startStart(builder);
   const startOffset = fbs.Start.endStart(builder);
-  const baseRes = send(builder, fbs.Any.Start, startOffset);
+  const baseRes = sendSync(builder, fbs.Any.Start, startOffset);
   assert(baseRes != null);
   assert(fbs.Any.StartRes === baseRes!.msgType());
   const startRes = new fbs.StartRes();
diff --git a/js/os.ts b/js/os.ts
index dcb7fcf664..3adfb5c1e8 100644
--- a/js/os.ts
+++ b/js/os.ts
@@ -4,14 +4,14 @@ import * as fbs from "gen/msg_generated";
 import { assert } from "./util";
 import * as util from "./util";
 import { flatbuffers } from "flatbuffers";
-import { send } from "./fbs_util";
+import { sendSync } from "./dispatch";
 
 export function exit(exitCode = 0): never {
   const builder = new flatbuffers.Builder();
   fbs.Exit.startExit(builder);
   fbs.Exit.addCode(builder, exitCode);
   const msg = fbs.Exit.endExit(builder);
-  send(builder, fbs.Any.Exit, msg);
+  sendSync(builder, fbs.Any.Exit, msg);
   return util.unreachable();
 }
 
@@ -28,7 +28,7 @@ export function codeFetch(
   fbs.CodeFetch.addModuleSpecifier(builder, moduleSpecifier_);
   fbs.CodeFetch.addContainingFile(builder, containingFile_);
   const msg = fbs.CodeFetch.endCodeFetch(builder);
-  const baseRes = send(builder, fbs.Any.CodeFetch, msg);
+  const baseRes = sendSync(builder, fbs.Any.CodeFetch, msg);
   assert(baseRes != null);
   assert(
     fbs.Any.CodeFetchRes === baseRes!.msgType(),
@@ -59,7 +59,7 @@ export function codeCache(
   fbs.CodeCache.addSourceCode(builder, sourceCode_);
   fbs.CodeCache.addOutputCode(builder, outputCode_);
   const msg = fbs.CodeCache.endCodeCache(builder);
-  const baseRes = send(builder, fbs.Any.CodeCache, msg);
+  const baseRes = sendSync(builder, fbs.Any.CodeCache, msg);
   assert(baseRes == null); // Expect null or error.
 }
 
@@ -97,7 +97,7 @@ export function makeTempDirSync({
     fbs.MakeTempDir.addSuffix(builder, fbSuffix);
   }
   const msg = fbs.MakeTempDir.endMakeTempDir(builder);
-  const baseRes = send(builder, fbs.Any.MakeTempDir, msg);
+  const baseRes = sendSync(builder, fbs.Any.MakeTempDir, msg);
   assert(baseRes != null);
   assert(fbs.Any.MakeTempDirRes === baseRes!.msgType());
   const res = new fbs.MakeTempDirRes();
@@ -111,7 +111,7 @@ export function makeTempDirSync({
 // and permission bits  (before umask).
 export function mkdirSync(path: string, mode = 0o777): void {
   /* Ideally we could write:
-  const res = send({
+  const res = sendSync({
     command: fbs.Command.MKDIR_SYNC,
     mkdirSyncPath: path,
     mkdirSyncMode: mode,
@@ -123,7 +123,7 @@ export function mkdirSync(path: string, mode = 0o777): void {
   fbs.MkdirSync.addPath(builder, path_);
   fbs.MkdirSync.addMode(builder, mode);
   const msg = fbs.MkdirSync.endMkdirSync(builder);
-  send(builder, fbs.Any.MkdirSync, msg);
+  sendSync(builder, fbs.Any.MkdirSync, msg);
 }
 
 /**
@@ -136,7 +136,7 @@ export function mkdirSync(path: string, mode = 0o777): void {
  */
 export function readFileSync(filename: string): Uint8Array {
   /* Ideally we could write
-  const res = send({
+  const res = sendSync({
     command: fbs.Command.READ_FILE_SYNC,
     readFileSyncFilename: filename
   });
@@ -147,7 +147,7 @@ export function readFileSync(filename: string): Uint8Array {
   fbs.ReadFileSync.startReadFileSync(builder);
   fbs.ReadFileSync.addFilename(builder, filename_);
   const msg = fbs.ReadFileSync.endReadFileSync(builder);
-  const baseRes = send(builder, fbs.Any.ReadFileSync, msg);
+  const baseRes = sendSync(builder, fbs.Any.ReadFileSync, msg);
   assert(baseRes != null);
   assert(fbs.Any.ReadFileSyncRes === baseRes!.msgType());
   const res = new fbs.ReadFileSyncRes();
@@ -182,7 +182,7 @@ function setEnv(key: string, value: string): void {
   fbs.SetEnv.addKey(builder, _key);
   fbs.SetEnv.addValue(builder, _value);
   const msg = fbs.SetEnv.endSetEnv(builder);
-  send(builder, fbs.Any.SetEnv, msg);
+  sendSync(builder, fbs.Any.SetEnv, msg);
 }
 
 /**
@@ -200,14 +200,14 @@ function setEnv(key: string, value: string): void {
  */
 export function env(): { [index: string]: string } {
   /* Ideally we could write
-  const res = send({
+  const res = sendSync({
     command: fbs.Command.ENV,
   });
   */
   const builder = new flatbuffers.Builder();
   fbs.Environ.startEnviron(builder);
   const msg = fbs.Environ.endEnviron(builder);
-  const baseRes = send(builder, fbs.Any.Environ, msg)!;
+  const baseRes = sendSync(builder, fbs.Any.Environ, msg)!;
   assert(fbs.Any.EnvironRes === baseRes.msgType());
   const res = new fbs.EnvironRes();
   assert(baseRes.msg(res) != null);
@@ -303,7 +303,7 @@ export function statSync(filename: string): FileInfo {
 
 function statSyncInner(filename: string, lstat: boolean): FileInfo {
   /* Ideally we could write
-  const res = send({
+  const res = sendSync({
     command: fbs.Command.STAT_FILE_SYNC,
     StatFilename: filename,
     StatLStat: lstat,
@@ -316,7 +316,7 @@ function statSyncInner(filename: string, lstat: boolean): FileInfo {
   fbs.StatSync.addFilename(builder, filename_);
   fbs.StatSync.addLstat(builder, lstat);
   const msg = fbs.StatSync.endStatSync(builder);
-  const baseRes = send(builder, fbs.Any.StatSync, msg);
+  const baseRes = sendSync(builder, fbs.Any.StatSync, msg);
   assert(baseRes != null);
   assert(fbs.Any.StatSyncRes === baseRes!.msgType());
   const res = new fbs.StatSyncRes();
@@ -338,7 +338,7 @@ export function writeFileSync(
   perm = 0o666
 ): void {
   /* Ideally we could write:
-  const res = send({
+  const res = sendSync({
     command: fbs.Command.WRITE_FILE_SYNC,
     writeFileSyncFilename: filename,
     writeFileSyncData: data,
@@ -353,7 +353,7 @@ export function writeFileSync(
   fbs.WriteFileSync.addData(builder, dataOffset);
   fbs.WriteFileSync.addPerm(builder, perm);
   const msg = fbs.WriteFileSync.endWriteFileSync(builder);
-  send(builder, fbs.Any.WriteFileSync, msg);
+  sendSync(builder, fbs.Any.WriteFileSync, msg);
 }
 
 /**
@@ -366,7 +366,7 @@ export function writeFileSync(
  */
 export function renameSync(oldpath: string, newpath: string): void {
   /* Ideally we could write:
-  const res = send({
+  const res = sendSync({
     command: fbs.Command.RENAME_SYNC,
     renameOldPath: oldpath,
     renameNewPath: newpath
@@ -379,5 +379,5 @@ export function renameSync(oldpath: string, newpath: string): void {
   fbs.RenameSync.addOldpath(builder, _oldpath);
   fbs.RenameSync.addNewpath(builder, _newpath);
   const msg = fbs.RenameSync.endRenameSync(builder);
-  send(builder, fbs.Any.RenameSync, msg);
+  sendSync(builder, fbs.Any.RenameSync, msg);
 }
diff --git a/js/timers.ts b/js/timers.ts
index ee95f70933..42be96d91b 100644
--- a/js/timers.ts
+++ b/js/timers.ts
@@ -3,7 +3,7 @@ import { assert } from "./util";
 import * as util from "./util";
 import * as fbs from "gen/msg_generated";
 import { flatbuffers } from "flatbuffers";
-import { send, sendAsync } from "./fbs_util";
+import { sendSync, sendAsync } from "./dispatch";
 
 let nextTimerId = 1;
 
@@ -93,6 +93,6 @@ export function clearTimer(id: number) {
   fbs.TimerClear.startTimerClear(builder);
   fbs.TimerClear.addId(builder, id);
   const msg = fbs.TimerClear.endTimerClear(builder);
-  const res = send(builder, fbs.Any.TimerClear, msg);
+  const res = sendSync(builder, fbs.Any.TimerClear, msg);
   assert(res == null);
 }
diff --git a/tests/error_004_missing_module.ts.out b/tests/error_004_missing_module.ts.out
index afb65a46c6..518a8742fa 100644
--- a/tests/error_004_missing_module.ts.out
+++ b/tests/error_004_missing_module.ts.out
@@ -1,7 +1,7 @@
 NotFound: Cannot resolve module "bad-module.ts" from "[WILDCARD]/tests/error_004_missing_module.ts"
     at maybeError (deno/js/errors.ts:[WILDCARD])
     at maybeThrowError (deno/js/errors.ts:[WILDCARD])
-    at send (deno/js/fbs_util.ts:[WILDCARD])
+    at sendSync (deno/js/dispatch.ts:[WILDCARD])
     at Object.codeFetch (deno/js/os.ts:[WILDCARD])
     at DenoCompiler.resolveModule (deno/js/compiler.ts:[WILDCARD])
     at DenoCompiler._resolveModuleName (deno/js/compiler.ts:[WILDCARD])
diff --git a/tests/error_005_missing_dynamic_import.ts.out b/tests/error_005_missing_dynamic_import.ts.out
index 0871eb780a..344e1e7d27 100644
--- a/tests/error_005_missing_dynamic_import.ts.out
+++ b/tests/error_005_missing_dynamic_import.ts.out
@@ -1,7 +1,7 @@
 NotFound: Cannot resolve module "bad-module.ts" from "[WILDCARD]deno/tests/error_005_missing_dynamic_import.ts"
     at maybeError (deno/js/errors.ts:[WILDCARD])
     at maybeThrowError (deno/js/errors.ts:[WILDCARD])
-    at send (deno/js/fbs_util.ts:[WILDCARD])
+    at sendSync (deno/js/dispatch.ts:[WILDCARD])
     at Object.codeFetch (deno/js/os.ts:[WILDCARD])
     at DenoCompiler.resolveModule (deno/js/compiler.ts:[WILDCARD])
     at DenoCompiler._resolveModuleName (deno/js/compiler.ts:[WILDCARD])