diff --git a/src/mem.c b/src/mem.c
index 3aa1be8bb688518ae52e83a84a7d3637e9a1dc81..2883008d0096f1ff2e18b9d8551a0a472065c2f7 100644
--- a/src/mem.c
+++ b/src/mem.c
@@ -48,7 +48,7 @@
 #include <rtthread.h>
 
 /* #define RT_MEM_DEBUG */
-#define RT_MEM_STATS
+/* #define RT_MEM_STATS */
 
 #if defined (RT_USING_HEAP) && defined (RT_USING_SMALL_MEM)
 #ifdef RT_USING_HOOK