diff --git a/sdk/lib/io/process.dart b/sdk/lib/io/process.dart
index 6159113c75e..c0781fe4f6f 100644
--- a/sdk/lib/io/process.dart
+++ b/sdk/lib/io/process.dart
@@ -229,7 +229,7 @@ abstract class Process {
    * get the original 32-bit value use `(0x100000000 + exitCode) &
    * 0xffffffff`.
    */
-  Future<int> exitCode;
+  Future<int> get exitCode;
 
   /**
    * Starts a process running the [executable] with the specified