diff --git a/tool/gocross/toolchain.go b/tool/gocross/toolchain.go
index 38935ebfc..f5f790b43 100644
--- a/tool/gocross/toolchain.go
+++ b/tool/gocross/toolchain.go
@@ -39,9 +39,6 @@ findTopLevel:
 func readRevFile(path string) (string, error) {
 	bs, err := os.ReadFile(path)
 	if err != nil {
-		if os.IsNotExist(err) {
-			return "", nil
-		}
 		return "", err
 	}
 	return string(bytes.TrimSpace(bs)), nil