diff --git a/protocols/hyprland-toplevel-export-v1.xml b/protocols/hyprland-toplevel-export-v1.xml
index fab65c8..b1185aa 100644
--- a/protocols/hyprland-toplevel-export-v1.xml
+++ b/protocols/hyprland-toplevel-export-v1.xml
@@ -77,7 +77,7 @@
       <arg name="frame" type="new_id" interface="hyprland_toplevel_export_frame_v1"/>
       <arg name="overlay_cursor" type="int"
         summary="composite cursor onto the frame"/>
-      <arg name="handle" type="object" allow-null="false" summary="the zwlr_foreign_toplevel_handle_v1 handle of the toplevel to be captured"/>
+      <arg name="handle" type="object" interface="zwlr_foreign_toplevel_handle_v1" allow-null="false" summary="the zwlr_foreign_toplevel_handle_v1 handle of the toplevel to be captured"/>
     </request>
     <!-- End Version 2 -->
   </interface>