diff --git a/include/common/tmsg.h b/include/common/tmsg.h
index e714dc1522..325a428f03 100644
--- a/include/common/tmsg.h
+++ b/include/common/tmsg.h
@@ -670,7 +670,7 @@ typedef struct {
 static FORCE_INLINE SColCmprWrapper* tCloneSColCmprWrapper(const SColCmprWrapper* pSrcWrapper) {
   if (pSrcWrapper->pColCmpr == NULL || pSrcWrapper->nCols == 0) return NULL;
 
-  SColCmprWrapper* pDstWrapper = taosMemoryMalloc(pSrcWrapper->nCols * sizeof(SColCmpr));
+  SColCmprWrapper* pDstWrapper = (SColCmprWrapper*)taosMemoryMalloc(sizeof(SColCmprWrapper));
   pDstWrapper->nCols = pSrcWrapper->nCols;
   pDstWrapper->version = pSrcWrapper->version;
 
diff --git a/source/util/test/decompressTest.cpp b/source/util/test/decompressTest.cpp
index caf8df3ba8..2241be67fb 100644
--- a/source/util/test/decompressTest.cpp
+++ b/source/util/test/decompressTest.cpp
@@ -13,6 +13,7 @@ TEST(utilTest, decompress_test) {
   int32_t len = tsCompressTimestamp(tsList, sizeof(tsList), sizeof(tsList) / sizeof(tsList[0]), pOutput, 10, ONE_STAGE_COMP, NULL, 0);
 
   char* decompOutput[10 * 8] = {0};
+
   tsDecompressTimestamp(pOutput, len, 10, decompOutput, sizeof(int64_t)*10, ONE_STAGE_COMP, NULL, 0);
 
   for(int32_t i = 0; i < 10; ++i) {