diff --git a/paddle/fluid/framework/async_executor.h b/paddle/fluid/framework/async_executor.h
index 7accc4cb57b332b8dbe8c159750b649d67e11e29..95c8472b2f3b6b0c2d95fcf0c0b6f00e7f39b032 100644
--- a/paddle/fluid/framework/async_executor.h
+++ b/paddle/fluid/framework/async_executor.h
@@ -39,7 +39,7 @@ inline double current_realtime() {
   clock_gettime(CLOCK_REALTIME, &tp);
   return tp.tv_sec + tp.tv_nsec * 1e-9;
 #else
-  return 0;
+  return 0.0;
 #endif
 }