diff --git a/source/client/src/tmq.c b/source/client/src/tmq.c
index 5b845fd455622cf5046a5949cb2845f787850988..e73888d9ba020f7c1f57fe0ceda863861337dfba 100644
--- a/source/client/src/tmq.c
+++ b/source/client/src/tmq.c
@@ -363,7 +363,11 @@ tmq_list_t* tmq_list_new() {
 
 int32_t tmq_list_append(tmq_list_t* list, const char* src) {
   SArray* container = &list->container;
-  char*   topic = strdup(src);
+  if (src == NULL || src[0] == 0) return -1;
+  char* topic = strdup(src);
+  if (topic[0] != '`') {
+    strtolower(topic, src);
+  }
   if (taosArrayPush(container, &topic) == NULL) return -1;
   return 0;
 }
diff --git a/source/dnode/vnode/src/tq/tqPush.c b/source/dnode/vnode/src/tq/tqPush.c
index 4b2160434fa8aab6a66ee3bed06a572c797aac50..c929c84203d4d085673ce54cd57914d59c152d94 100644
--- a/source/dnode/vnode/src/tq/tqPush.c
+++ b/source/dnode/vnode/src/tq/tqPush.c
@@ -243,7 +243,7 @@ int tqPushMsg(STQ* pTq, void* msg, int32_t msgLen, tmsg_t msgType, int64_t ver)
     void* data = taosMemoryMalloc(msgLen);
     if (data == NULL) {
       terrno = TSDB_CODE_OUT_OF_MEMORY;
-      qError("failed to copy data for stream since out of memory");
+      tqError("failed to copy data for stream since out of memory");
       return -1;
     }
     memcpy(data, msg, msgLen);