diff --git a/gtk/ui/gtkemojichooser.ui b/gtk/ui/gtkemojichooser.ui
index 40c26eeaba..53f959a857 100644
--- a/gtk/ui/gtkemojichooser.ui
+++ b/gtk/ui/gtkemojichooser.ui
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<interface domain="gtk40">
+<interface domain="gtk30">
   <template class="GtkEmojiChooser" parent="GtkPopover">
     <property name="modal">1</property>
     <style>