diff --git a/src/client/src/tscSystem.c b/src/client/src/tscSystem.c
index ad29b5866007429c56c0d2bdc2d7d768d4ab8e79..c04765b0651f59066dd5897f2eaf0924b7113a21 100644
--- a/src/client/src/tscSystem.c
+++ b/src/client/src/tscSystem.c
@@ -199,9 +199,7 @@ void taos_init_imp(void) {
 
   // In the APIs of other program language, taos_cleanup is not available yet.
   // So, to make sure taos_cleanup will be invoked to clean up the allocated resource to suppress the valgrind warning.
-#if !defined(TD_WINDOWS)
   atexit(taos_cleanup);
-#endif
 
   tscDebug("client is initialized successfully");
 }