diff --git a/source/util/src/tarray.c b/source/util/src/tarray.c
index 67c7b4af17feed4103c195e6e4bbd0b40a9dabf4..03f68c359db1294c3575a988fa2f3290dd448e2c 100644
--- a/source/util/src/tarray.c
+++ b/source/util/src/tarray.c
@@ -33,7 +33,7 @@ SArray* taosArrayInit(size_t size, size_t elemSize) {
   }
 
   pArray->size = 0;
-  pArray->pData = taosMemoryMalloc(size, elemSize);
+  pArray->pData = taosMemoryMalloc(size * elemSize);
   if (pArray->pData == NULL) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
     taosMemoryFree(pArray);