diff --git a/redis.c b/redis.c
index b62ce0c6d5..ff0c46533c 100644
--- a/redis.c
+++ b/redis.c
@@ -2932,7 +2932,7 @@ static robj *createStringObject(char *ptr, size_t len) {
 
 static robj *createStringObjectFromLongLong(long long value) {
     robj *o;
-    if (value >= 0 && value < REDIS_SHARED_INTEGERS
+    if (value >= 0 && value < REDIS_SHARED_INTEGERS &&
         pthread_equal(pthread_self(),server.mainthread)) {
         incrRefCount(shared.integers[value]);
         o = shared.integers[value];