diff --git a/data/dbus-interfaces/org.gtk.Notifications.xml b/data/dbus-interfaces/org.gtk.Notifications.xml
index e2461fff8..56a6cecbe 100644
--- a/data/dbus-interfaces/org.gtk.Notifications.xml
+++ b/data/dbus-interfaces/org.gtk.Notifications.xml
@@ -1,13 +1,13 @@
 <node>
   <interface name="org.gtk.Notifications">
     <method name="AddNotification">
-      <arg type="s" direction="in"/>
-      <arg type="s" direction="in"/>
-      <arg type="a{sv}" direction="in"/>
+      <arg name="app_id" type="s" direction="in"/>
+      <arg name="id" type="s" direction="in"/>
+      <arg name="notification" type="a{sv}" direction="in"/>
     </method>
     <method name="RemoveNotification">
-      <arg type="s" direction="in"/>
-      <arg type="s" direction="in"/>
+      <arg name="app_id" type="s" direction="in"/>
+      <arg name="id" type="s" direction="in"/>
     </method>
   </interface>
 </node>