diff --git a/src/common/inc/tdataformat.h b/src/common/inc/tdataformat.h
index 54e9521469483ca5ec0ee382827292903699e9f1..149f90fc1fb1e778d05234370b5823708defe357 100644
--- a/src/common/inc/tdataformat.h
+++ b/src/common/inc/tdataformat.h
@@ -557,8 +557,8 @@ static FORCE_INLINE int tdAddColToKVRow(SKVRowBuilder *pBuilder, int16_t colId,
 
   pBuilder->nCols++;
 
-  void *jumpType = value;
-  if(isJumpJsonVType) jumpType = value + CHAR_BYTES;
+  char *jumpType = value;
+  if(isJumpJsonVType) jumpType += CHAR_BYTES;
   int tlen = IS_VAR_DATA_TYPE(type) ? varDataTLen(jumpType) : TYPE_BYTES[type];
   if (tlen > pBuilder->alloc - pBuilder->size) {
     while (tlen > pBuilder->alloc - pBuilder->size) {