diff --git a/chaotic/include/userver/chaotic/sax_parser/enum.hpp b/chaotic/include/userver/chaotic/sax_parser/enum.hpp
index adb31afff7fa..74fcd9700535 100644
--- a/chaotic/include/userver/chaotic/sax_parser/enum.hpp
+++ b/chaotic/include/userver/chaotic/sax_parser/enum.hpp
@@ -67,10 +67,15 @@ struct IsStringEnum<Enum, utils::void_t<decltype(Convert(std::string_view{}, cha
 }  // namespace impl
 
 template <typename Enum>
-std::enable_if_t<
-    std::is_enum_v<Enum>,
-    std::conditional_t<impl::IsStringEnum<Enum>::value, impl::StringEnumParser<Enum>, impl::IntEnumParser<Enum>>>
-    ParserOf(Type<Enum>);
+    requires std::is_enum_v<Enum>
+auto ParserOf(Type<Enum>)
+{
+  if constexpr (impl::IsStringEnum<Enum>::value) {
+    return impl::StringEnumParser<Enum>{};
+  } else {
+    return impl::IntEnumParser<Enum> {};
+  }
+}
 
 }  // namespace chaotic::sax