diff --git a/source/libs/monitorfw/inc/taos_metric_sample_t.h b/source/libs/monitorfw/inc/taos_metric_sample_t.h
index 6ebc000df5..387512af9d 100644
--- a/source/libs/monitorfw/inc/taos_metric_sample_t.h
+++ b/source/libs/monitorfw/inc/taos_metric_sample_t.h
@@ -22,7 +22,7 @@
 #if !defined(WINDOWS)
 #define C11_ATOMIC
 #else
-//#define DOUBLE_ATOMIC
+#define DOUBLE_ATOMIC
 #endif 
 
 #ifdef C11_ATOMIC