diff --git a/types/glue/glue-tests.ts b/types/glue/glue-tests.ts
index 7ac309352c..dd400697e6 100644
--- a/types/glue/glue-tests.ts
+++ b/types/glue/glue-tests.ts
@@ -7,8 +7,9 @@ const manifest: Glue.Manifest = {
   },
   register: {
     plugins: [
+      "./test-plugin.js",
       {
-        plugin: "./test",
+        plugin: "./test.js",
         routes: {
           prefix: "test"
         }
diff --git a/types/glue/index.d.ts b/types/glue/index.d.ts
index f347e69746..060d729d66 100644
--- a/types/glue/index.d.ts
+++ b/types/glue/index.d.ts
@@ -24,8 +24,8 @@ export interface Plugin {
 export interface Manifest {
   server: ServerOptions;
   register?: {
-    plugins: string[] | Plugin[]
+    plugins: string[] | Plugin[] | Array<(string|Plugin)>
   };
 }
 
-export function compose(manifest: Manifest, options?: Options): Server;
+export function compose(manifest: Manifest, options?: Options): Promise<Server>;