diff --git a/be/src/vec/aggregate_functions/aggregate_function_min_max_by.cpp b/be/src/vec/aggregate_functions/aggregate_function_min_max_by.cpp
index e7e949e6b1..fbcfcb5ddf 100644
--- a/be/src/vec/aggregate_functions/aggregate_function_min_max_by.cpp
+++ b/be/src/vec/aggregate_functions/aggregate_function_min_max_by.cpp
@@ -111,12 +111,12 @@ static IAggregateFunction* create_aggregate_function_min_max_by(const String& na
     }
     if (which.idx == TypeIndex::Decimal32) {
         return create_aggregate_function_min_max_by_impl<AggregateFunctionTemplate, Data,
-                                                         SingleValueDataFixed<Int32>>(
+                                                         SingleValueDataDecimal<Decimal32>>(
                 argument_types);
     }
     if (which.idx == TypeIndex::Decimal64) {
         return create_aggregate_function_min_max_by_impl<AggregateFunctionTemplate, Data,
-                                                         SingleValueDataFixed<Int64>>(
+                                                         SingleValueDataDecimal<Decimal64>>(
                 argument_types);
     }
     if (which.idx == TypeIndex::Decimal128I) {