diff --git a/paddle/utils/Util.cpp b/paddle/utils/Util.cpp
index 45251213d2d7930947f39d4730245ca8f7dfddc8..2cdff9d1aca927122fcdb0c2a7ab22a0e38b41c1 100644
--- a/paddle/utils/Util.cpp
+++ b/paddle/utils/Util.cpp
@@ -106,7 +106,7 @@ pid_t getTID() {
       #endif
       pid_t tid = syscall(__NR_gettid);
   #endif
-  CHECK_NE(tid, -1);
+  CHECK_NE((int)tid, -1);
   return tid;
 }