diff --git a/server/protocol.def b/server/protocol.def
index d9fd48c..b1258b2 100644
--- a/server/protocol.def
+++ b/server/protocol.def
@@ -2913,6 +2913,13 @@
     unsigned int   ref_count;     /* object ref count */
 @END
 
+
+/* Unlink a named object */
+@REQ(unlink_object)
+    obj_handle_t   handle;        /* handle to the object */
+@END
+
+
 /* Query the impersonation level of an impersonation token */
 @REQ(get_token_impersonation_level)
     obj_handle_t   handle;        /* handle to the object */