diff --git a/src/envelopePlugin.ts b/src/envelopePlugin.ts
index 3815756..0e19ee9 100644
--- a/src/envelopePlugin.ts
+++ b/src/envelopePlugin.ts
@@ -22,7 +22,7 @@ const validateUser = (params: any) => {
     }
 }
 
-const plugins: MeshPlugin<any> = [
+const plugins: MeshPlugin<any>[] = [
     useGenericAuth({
         resolveUserFn,
         validateUser,