diff --git a/src/os/linux/src/os.c b/src/os/linux/src/os.c
index 999bc865e72535ccdb20ef0006cd131b7166457f..785b1dd16e41618a1b9816ab40c18fa6c39bf5ea 100644
--- a/src/os/linux/src/os.c
+++ b/src/os/linux/src/os.c
@@ -225,29 +225,29 @@ int taosOpenUDServerSocket(char *ip, short port) {
 
 // The callback functions MUST free the param pass to it after finishing use it.
 int taosInitTimer(void *(*callback)(void *), int ms) {
-    /********************************************************
-     * Create SIGALRM loop thread
-     ********************************************************/
-    pthread_t thread;
-    pthread_attr_t tattr;
-    if (pthread_attr_init(&tattr)) {
-        return -1;
-    }
+  /********************************************************
+   * Create SIGALRM loop thread
+   ********************************************************/
+  pthread_t thread;
+  pthread_attr_t tattr;
+  if (pthread_attr_init(&tattr)) {
+      return -1;
+  }
 
-    if (pthread_attr_setdetachstate(&tattr, PTHREAD_CREATE_DETACHED)) {
-        return -1;
-    }
+  if (pthread_attr_setdetachstate(&tattr, PTHREAD_CREATE_DETACHED)) {
+      return -1;
+  }
 
-    int *tms = (int *) malloc(sizeof(int));
-    *tms = ms;
-    if (pthread_create(&thread, &tattr, callback, (void *) tms)) {
-        free(tms);
-        return -1;
-    }
+  int *tms = (int *) malloc(sizeof(int));
+  *tms = ms;
+  if (pthread_create(&thread, &tattr, callback, (void *) tms)) {
+      free(tms);
+      return -1;
+  }
 
-    if (pthread_attr_destroy(&tattr)) {
-        return -1;
-    }
+  if (pthread_attr_destroy(&tattr)) {
+      return -1;
+  }
 
-    return 0;
+  return 0;
 }