diff --git a/iguana/iguana_realtime.c b/iguana/iguana_realtime.c
index e9e640a07..9c545131e 100755
--- a/iguana/iguana_realtime.c
+++ b/iguana/iguana_realtime.c
@@ -468,7 +468,7 @@ int32_t iguana_realtime_update(struct supernet_info *myinfo,struct iguana_info *
 }
 #endif
 
-//#define FAST_UTHASH
+#define FAST_UTHASH
 #ifdef FAST_UTHASH
 #undef uthash_malloc
 #undef uthash_free