diff --git a/source/libs/scalar/src/sclfunc.c b/source/libs/scalar/src/sclfunc.c
index d350a380e0..76c0e48740 100644
--- a/source/libs/scalar/src/sclfunc.c
+++ b/source/libs/scalar/src/sclfunc.c
@@ -1528,7 +1528,7 @@ int32_t nowFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutpu
 
 int32_t todayFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput) {
   int64_t timePrec;
-  GET_TYPED_DATA(timePrec, int64_t, GET_PARAM_TYPE(&pInput[1]), pInput[1].columnData->pData);
+  GET_TYPED_DATA(timePrec, int64_t, GET_PARAM_TYPE(&pInput[0]), pInput[0].columnData->pData);
 
   int64_t ts = taosGetTimestampToday(timePrec);
   for (int32_t i = 0; i < pInput->numOfRows; ++i) {