diff --git a/src/agents/shell-snapshot.ts b/src/agents/shell-snapshot.ts
index 874f559a4a3..c47ea101a5a 100644
--- a/src/agents/shell-snapshot.ts
+++ b/src/agents/shell-snapshot.ts
@@ -249,9 +249,7 @@ async function validateSnapshot(
 
 async function captureShellSnapshot(opts: ShellSnapshotWrapOptions): Promise<string | null> {
   const shellName = path.basename(opts.shell);
-  const captureOutputDir = await fs.mkdtemp(
-    path.join(os.tmpdir(), `openclaw-shell-snapshot-${process.pid}-`),
-  );
+  const captureOutputDir = await fs.mkdtemp(path.join(os.tmpdir(), "openclaw-shell-snapshot-"));
   await fs.chmod(captureOutputDir, 0o700);
   const captureOutputPath = path.join(captureOutputDir, "snapshot.out");
   const captureOutputFile = await fs.open(captureOutputPath, "wx", 0o600);