diff --git a/src/inc/taos.h b/src/inc/taos.h
index 315313734753de73bf477b1f67783a45c38c87c9..2c6454ced1911de603f120c79af5237c2f064c48 100644
--- a/src/inc/taos.h
+++ b/src/inc/taos.h
@@ -64,7 +64,7 @@ typedef struct taosField {
 #endif
 
 DLL_EXPORT void  taos_init();
-DLL_EXPORT void  taos_cleanup();
+DLL_EXPORT void  taos_cleanup(void);
 DLL_EXPORT int   taos_options(TSDB_OPTION option, const void *arg, ...);
 DLL_EXPORT TAOS *taos_connect(const char *ip, const char *user, const char *pass, const char *db, uint16_t port);
 DLL_EXPORT void  taos_close(TAOS *taos);