diff --git a/source/libs/monitorfw/src/taos_metric_sample.c b/source/libs/monitorfw/src/taos_metric_sample.c
index 62b058d846..9b16e6fe1a 100644
--- a/source/libs/monitorfw/src/taos_metric_sample.c
+++ b/source/libs/monitorfw/src/taos_metric_sample.c
@@ -29,6 +29,7 @@
 #include <stdatomic.h>
 #else
 #define ALLOW_FORBID_FUNC
+#include "tdef.h"
 #include "osAtomic.h"
 #endif