diff --git a/types/glue/index.d.ts b/types/glue/index.d.ts
index d1bf010ffe..f347e69746 100644
--- a/types/glue/index.d.ts
+++ b/types/glue/index.d.ts
@@ -24,7 +24,7 @@ export interface Plugin {
 export interface Manifest {
   server: ServerOptions;
   register?: {
-    plugins: string | Plugin[]
+    plugins: string[] | Plugin[]
   };
 }