diff --git a/src/SupabaseClient.ts b/src/SupabaseClient.ts
index 9f0a32c7..996685fb 100644
--- a/src/SupabaseClient.ts
+++ b/src/SupabaseClient.ts
@@ -221,7 +221,9 @@ export default class SupabaseClient<
         ? Fn['Returns'][number]
         : never
       : never,
-    Fn['Returns']
+    Fn['Returns'],
+    FnName,
+    null
   > {
     return this.rest.rpc(fn, args, options)
   }