diff --git a/src/cmd/go/testdata/script/gotoolchain_path.txt b/src/cmd/go/testdata/script/gotoolchain_path.txt
index 9628348f7a..b7a1c9bd89 100644
--- a/src/cmd/go/testdata/script/gotoolchain_path.txt
+++ b/src/cmd/go/testdata/script/gotoolchain_path.txt
@@ -8,8 +8,7 @@ env TESTGO_VERSION=go1.21pre3
 # Compile a fake toolchain to put in the path under various names.
 env GOTOOLCHAIN=
 mkdir $WORK/bin
-go build -o $WORK/bin/ ./fakego.go  # adds .exe extension implicitly on Windows
-cp $WORK/bin/fakego$GOEXE $WORK/bin/go1.50.0$GOEXE
+go build -o $WORK/bin/go1.50.0$GOEXE ./fakego.go  # adds .exe extension implicitly on Windows
 
 [!GOOS:plan9] env PATH=$WORK/bin
 [GOOS:plan9] env path=$WORK/bin