diff --git a/src/node_builtins.cc b/src/node_builtins.cc
index 253ecaad12dace..6c6c4dd3236b47 100644
--- a/src/node_builtins.cc
+++ b/src/node_builtins.cc
@@ -64,6 +64,11 @@ BuiltinLoader::BuiltinLoader()
 #endif  // HAVE_AMARO
 }
 
+std::ranges::keys_view<std::ranges::ref_view<const BuiltinSourceMap>>
+BuiltinLoader::GetBuiltinIds() const {
+  return std::views::keys(*source_.read());
+}
+
 bool BuiltinLoader::Exists(const char* id) {
   auto source = source_.read();
   return source->find(id) != source->end();
diff --git a/src/node_builtins.h b/src/node_builtins.h
index 83ddad2127227d..7a7b84337feb67 100644
--- a/src/node_builtins.h
+++ b/src/node_builtins.h
@@ -127,9 +127,9 @@ class NODE_EXTERN_PRIVATE BuiltinLoader {
 
   void CopySourceAndCodeCacheReferenceFrom(const BuiltinLoader* other);
 
-  [[nodiscard]] auto GetBuiltinIds() const {
-    return std::views::keys(*source_.read());
-  }
+  [[nodiscard]] std::ranges::keys_view<
+      std::ranges::ref_view<const BuiltinSourceMap>>
+  GetBuiltinIds() const;
 
   void SetEagerCompile() { should_eager_compile_ = true; }