diff --git a/packages/pulse-openclaw/src/watchers/gateway-health.test.ts b/packages/pulse-openclaw/src/watchers/gateway-health.test.ts
index 4021949..ddeb3cf 100644
--- a/packages/pulse-openclaw/src/watchers/gateway-health.test.ts
+++ b/packages/pulse-openclaw/src/watchers/gateway-health.test.ts
@@ -37,6 +37,7 @@ describe('gatewayHealthWatcher', () => {
       });
 
       mockExecSync
+        .mockReturnValueOnce('12345\n') // systemctl → PID
         .mockReturnValueOnce('1048576\n') // ps → 1048576 KB = 1024 MB
         .mockReturnValueOnce('50\n'); // du
       mockFs.readdirSync.mockReturnValue([]);
@@ -52,7 +53,7 @@ describe('gatewayHealthWatcher', () => {
         fsFn: mockFs as any,
       });
 
-      mockExecSync.mockReturnValueOnce(''); // no process
+      mockExecSync.mockReturnValueOnce('0\n'); // systemctl → MainPID=0 (not running)
       mockFs.readdirSync.mockReturnValue([]);
 
       const result = await watcher.collect();
@@ -158,6 +159,7 @@ describe('gatewayHealthWatcher', () => {
       });
 
       mockExecSync
+        .mockReturnValueOnce('12345\n') // systemctl → PID
         .mockReturnValueOnce('512\n') // ps
         .mockReturnValueOnce('125\t/path\n'); // du → 125 MB