diff --git a/src/testing/testing.go b/src/testing/testing.go
index d89a99454d..2a80bf26f4 100644
--- a/src/testing/testing.go
+++ b/src/testing/testing.go
@@ -1173,7 +1173,7 @@ func (c *common) Cleanup(f func()) {
 }
 
 // TempDir returns a temporary directory for the test to use.
-// The directory is automatically removed by Cleanup when the test and
+// The directory is automatically removed when the test and
 // all its subtests complete.
 // Each subsequent call to t.TempDir returns a unique directory;
 // if the directory creation fails, TempDir terminates the test by calling Fatal.