diff --git a/src/cli/update-cli/shared.ts b/src/cli/update-cli/shared.ts
index 27f8fc459f2..3f2046b870b 100644
--- a/src/cli/update-cli/shared.ts
+++ b/src/cli/update-cli/shared.ts
@@ -121,7 +121,11 @@ export function resolveGitInstallDir(): string {
 }
 
 function resolveDefaultGitDir(): string {
-  return path.join(os.homedir(), "openclaw");
+  const home = os.homedir();
+  if (home.startsWith("/")) {
+    return path.posix.join(home, "openclaw");
+  }
+  return path.join(home, "openclaw");
 }
 
 export function resolveNodeRunner(): string {