diff --git a/src/query/src/qAggMain.c b/src/query/src/qAggMain.c
index 46979909fa1d357c028eb70f2c80577ff44f3074..c49aa015985a45a58b628a6f7380e1eaf8a6697f 100644
--- a/src/query/src/qAggMain.c
+++ b/src/query/src/qAggMain.c
@@ -4964,8 +4964,9 @@ static bool histogram_function_setup(SQLFunctionCtx *pCtx, SResultRowCellInfo* p
     return false;
   }
 
-  double* listBin = (double*) pCtx->param[1].pz;
   int32_t numOfBins = (int32_t)pCtx->param[0].i64;
+  double* listBin = (double*) pCtx->param[1].pz;
+  int32_t normalized = (int32_t)pCtx->param[2].i64;
   pRes->numOfBins = numOfBins;
   pRes->orderedBins = (SHistogramFuncBin*)((char*)pRes + sizeof(SHistogramFuncInfo));
   for (int32_t i = 0; i < numOfBins; ++i) {