diff --git a/src/os/exec/lp_windows_test.go b/src/os/exec/lp_windows_test.go
index d1c9046174..64d7dca2e8 100644
--- a/src/os/exec/lp_windows_test.go
+++ b/src/os/exec/lp_windows_test.go
@@ -117,7 +117,7 @@ func createEnv(dir, PATH, PATHEXT string) []string {
 		dirs[i] = filepath.Join(dir, dirs[i])
 	}
 	path := strings.Join(dirs, ";")
-	env = updateEnv(env, "PATH", path)
+	env = updateEnv(env, "PATH", os.Getenv("SystemRoot") + "/System32;" + path)
 	return env
 }