diff --git a/source/dnode/vnode/src/tsdb/tsdbRead.c b/source/dnode/vnode/src/tsdb/tsdbRead.c
index da6fad6bcd..b3d31f2217 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead.c
@@ -312,8 +312,8 @@ static int32_t ensureBlockScanInfoBuf(SBlockInfoBuf* pBuf, int32_t numOfTables)
   }
 
   if (pBuf->numOfTables > 0) {
-    STableBlockScanInfo *p = (STableBlockScanInfo*)taosArrayPop(pBuf->pData);
-    taosMemoryFree(p);
+    STableBlockScanInfo **p = (STableBlockScanInfo**)taosArrayPop(pBuf->pData);
+    taosMemoryFree(*p);
     pBuf->numOfTables /= pBuf->numPerBucket;
   }