diff --git a/source/common/src/tmsg.c b/source/common/src/tmsg.c
index 5973a70b59c8601d1c9c3e20c897d659dc2198b3..0edfcb3314c37c0b0b21223137fa29347f3cb81f 100644
--- a/source/common/src/tmsg.c
+++ b/source/common/src/tmsg.c
@@ -1960,7 +1960,7 @@ int32_t tDeserializeSUseDbBatchRsp(void *buf, int32_t bufLen, SUseDbBatchRsp *pR
   int32_t numOfBatch = taosArrayGetSize(pRsp->pArray);
   if (tDecodeI32(&decoder, &numOfBatch) < 0) return -1;
 
-  pRsp->pArray = taosArrayInit(numOfBatch, sizeof(SUseDbBatchRsp));
+  pRsp->pArray = taosArrayInit(numOfBatch, sizeof(SUseDbRsp));
   if (pRsp->pArray == NULL) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
     return -1;