diff --git a/packages/language-service/src/ts_plugin.ts b/packages/language-service/src/ts_plugin.ts
index 05955deacf7..7a84040f02c 100644
--- a/packages/language-service/src/ts_plugin.ts
+++ b/packages/language-service/src/ts_plugin.ts
@@ -275,3 +275,11 @@ export function getExternalFiles(project: ts.server.Project): string[] {
   }
   return [...typecheckFiles, ...resourceFiles];
 }
+
+/** Implementation of a ts.server.PluginModuleFactory */
+export function initialize(mod: {typescript: typeof ts}): ts.server.PluginModule {
+  return {
+    create,
+    getExternalFiles,
+  };
+}