diff --git a/onnxruntime/core/providers/cuda/reduction/reduction_functions.cc b/onnxruntime/core/providers/cuda/reduction/reduction_functions.cc
index 955df6d9a..f9fd53e15 100644
--- a/onnxruntime/core/providers/cuda/reduction/reduction_functions.cc
+++ b/onnxruntime/core/providers/cuda/reduction/reduction_functions.cc
@@ -39,7 +39,7 @@ optional<std::pair<int64_t, int64_t>> GetMinAndMaxContiguousAxes(
   }
 
   // normalize axis values and sort
-  const std::vector<int64_t> axes = [&original_axes, rank]() {
+  const std::vector<int64_t> axes = [&original_axes, rank]() -> std::vector<int64_t> {
     std::vector<int64_t> result(original_axes);
     std::for_each(
         result.begin(), result.end(),
@@ -85,7 +85,7 @@ optional<std::pair<int64_t, int64_t>> GetMinAndMaxContiguousAxes(
     return std::distance(dims.begin(), before_min_axis_rit.base());
   }();
 
-  const int64_t max_axis = [&dims, &axes, &is_dim_one]() {
+  const int64_t max_axis = [&dims, &axes, &is_dim_one]() -> int64_t {
     const auto& max_given_axis = axes.back();
     const auto after_max_given_axis_it = dims.begin() + max_given_axis + 1;
     const auto after_max_axis_it =