diff --git a/src/cmd/gofmt/doc.go b/src/cmd/gofmt/doc.go
index 68476e7d44..e340665594 100644
--- a/src/cmd/gofmt/doc.go
+++ b/src/cmd/gofmt/doc.go
@@ -26,9 +26,6 @@ The flags are:
 		Do not print reformatted sources to standard output.
 		If a file's formatting is different from gofmt's, print its name
 		to standard output.
-	-G
-		Allow generic code, using type parameters.
-		See golang.org/issues/43651 for more information.
 	-r rule
 		Apply the rewrite rule to the source before reformatting.
 	-s
diff --git a/src/cmd/gofmt/gofmt_test.go b/src/cmd/gofmt/gofmt_test.go
index f0d3f8780f..9ef7676214 100644
--- a/src/cmd/gofmt/gofmt_test.go
+++ b/src/cmd/gofmt/gofmt_test.go
@@ -54,8 +54,6 @@ func gofmtFlags(filename string, maxLines int) string {
 	return ""
 }
 
-var typeParamsEnabled = false
-
 func runTest(t *testing.T, in, out string) {
 	// process flags
 	*simplifyAST = false
@@ -78,11 +76,6 @@ func runTest(t *testing.T, in, out string) {
 		case "-stdin":
 			// fake flag - pretend input is from stdin
 			stdin = true
-		case "-G":
-			// fake flag - test is for generic code
-			if !typeParamsEnabled {
-				return
-			}
 		default:
 			t.Errorf("unrecognized flag name: %s", name)
 		}
diff --git a/src/cmd/gofmt/gofmt_typeparams_test.go b/src/cmd/gofmt/gofmt_typeparams_test.go
deleted file mode 100644
index 10641a77cb..0000000000
--- a/src/cmd/gofmt/gofmt_typeparams_test.go
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright 2021 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build typeparams
-// +build typeparams
-
-package main
-
-func init() {
-	typeParamsEnabled = true
-}
diff --git a/src/cmd/gofmt/testdata/typeparams.golden b/src/cmd/gofmt/testdata/typeparams.golden
index 35f08d1379..f71bd130db 100644
--- a/src/cmd/gofmt/testdata/typeparams.golden
+++ b/src/cmd/gofmt/testdata/typeparams.golden
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//gofmt -G
+//gofmt
 
 package typeparams
 
diff --git a/src/cmd/gofmt/testdata/typeparams.input b/src/cmd/gofmt/testdata/typeparams.input
index 7f3212c8e4..5d4c53d9f7 100644
--- a/src/cmd/gofmt/testdata/typeparams.input
+++ b/src/cmd/gofmt/testdata/typeparams.input
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//gofmt -G
+//gofmt
 
 package typeparams