diff --git a/src/networking.c b/src/networking.c
index 7fc6917f665..5292caf6056 100644
--- a/src/networking.c
+++ b/src/networking.c
@@ -895,7 +895,7 @@ void sendReplyToClient(aeEventLoop *el, int fd, void *privdata, int mask) {
         } else {
             o = listNodeValue(ln);
             objlen = (int)sdslen(o->ptr);
-            objmem = zmalloc_size_sds(o->ptr);
+            objmem = getStringObjectSdsUsedMemory(o);
 
             if (objlen == 0) {
                 listDelNode(c->reply,ln);