diff --git a/gtk/ui/gtkemojicompletion.ui b/gtk/ui/gtkemojicompletion.ui
index 7f5f3ef49a..2ddf84cbc7 100644
--- a/gtk/ui/gtkemojicompletion.ui
+++ b/gtk/ui/gtkemojicompletion.ui
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<interface domain="gtk40">
+<interface domain="gtk30">
   <template class="GtkEmojiCompletion" parent="GtkPopover">
     <property name="modal">0</property>
     <style>
diff --git a/gtk/ui/gtkfontchooserwidget.ui b/gtk/ui/gtkfontchooserwidget.ui
index f1b003cf95..2d39200919 100644
--- a/gtk/ui/gtkfontchooserwidget.ui
+++ b/gtk/ui/gtkfontchooserwidget.ui
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<interface domain="gtk40">
+<interface domain="gtk30">
   <!-- interface-requires gtk+ 3.10 -->
   <object class="GtkListStore" id="model">
     <columns>