diff --git a/src/install-sh-version.test.ts b/src/install-sh-version.test.ts
index c2e627ed901..9f8a4d180e9 100644
--- a/src/install-sh-version.test.ts
+++ b/src/install-sh-version.test.ts
@@ -37,7 +37,7 @@ function resolveInstallerVersionCases(params: {
   const output = execFileSync(
     "bash",
     [
-      "-lc",
+      "-c",
       `source "${installerPath}" >/dev/null 2>&1
 for openclaw_bin in "\${@:3}"; do
   OPENCLAW_BIN="$openclaw_bin"