diff --git a/src/core/hle/service/nfp/nfp.cpp b/src/core/hle/service/nfp/nfp.cpp
index 0a9a41ce0a..7c0d0bf869 100644
--- a/src/core/hle/service/nfp/nfp.cpp
+++ b/src/core/hle/service/nfp/nfp.cpp
@@ -258,7 +258,7 @@ private:
     void AttachAvailabilityChangeEvent(Kernel::HLERequestContext& ctx) {
         LOG_WARNING(Service_NFP, "(STUBBED) called");
 
-        IPC::ResponseBuilder rb{ctx, 2};
+        IPC::ResponseBuilder rb{ctx, 2, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushCopyObjects(availability_change_event);
     }