diff --git a/source/blender/functions/FN_lazy_function_execute.hh b/source/blender/functions/FN_lazy_function_execute.hh
index a59d363a9d5..5a80985cdc0 100644
--- a/source/blender/functions/FN_lazy_function_execute.hh
+++ b/source/blender/functions/FN_lazy_function_execute.hh
@@ -67,7 +67,7 @@ inline void execute_lazy_function_eagerly_impl(
   (
       [&]() {
         constexpr size_t I = InIndices;
-        using T = Inputs;
+        typedef Inputs T;
         const CPPType &type = CPPType::get<T>();
         input_pointers[I] = {type, &std::get<I>(inputs)};
       }(),
@@ -75,7 +75,7 @@ inline void execute_lazy_function_eagerly_impl(
   (
       [&]() {
         constexpr size_t I = OutIndices;
-        using T = Outputs;
+        typedef Outputs T;
         const CPPType &type = CPPType::get<T>();
         output_pointers[I] = {type, std::get<I>(outputs)};
       }(),