diff --git a/df.ui-menus.xml b/df.ui-menus.xml
index c985bab59..250775f1e 100644
--- a/df.ui-menus.xml
+++ b/df.ui-menus.xml
@@ -353,6 +353,7 @@
             <stl-vector name='mat_index_all' type-name='int32_t'/>
             <stl-vector name='mat_amount_all' type-name='int32_t'/>
             <int32_t name='mat_cursor'/>
+            <int32_t/>
             <stl-string name='mat_filter'/>
             <bool name='editing_mat_filter'/>