diff --git a/source/client/src/clientStmt.c b/source/client/src/clientStmt.c
index b16d1e8aac..165c7b8bfb 100644
--- a/source/client/src/clientStmt.c
+++ b/source/client/src/clientStmt.c
@@ -53,7 +53,6 @@ bool stmtDequeue(STscStmt* pStmt, SStmtQNode** param) {
     }
   }
   if (pStmt->queue.stopQueue) {
-    (void)taosThreadMutexUnlock(&pStmt->queue.mutex);
     return false;
   }
   SStmtQNode* orig = pStmt->queue.head;
diff --git a/source/client/src/clientStmt2.c b/source/client/src/clientStmt2.c
index bc8b03ffd4..75d763ec71 100644
--- a/source/client/src/clientStmt2.c
+++ b/source/client/src/clientStmt2.c
@@ -53,7 +53,6 @@ static bool stmtDequeue(STscStmt2* pStmt, SStmtQNode** param) {
     }
   }
   if (pStmt->queue.stopQueue) {
-    (void)taosThreadMutexUnlock(&pStmt->queue.mutex);
     return false;
   }
   SStmtQNode* orig = pStmt->queue.head;