diff --git a/data/gui.xml b/data/gui.xml
index ac89a3685..b4afc7a92 100644
--- a/data/gui.xml
+++ b/data/gui.xml
@@ -227,9 +227,15 @@
       <key command="ChangeBrush" shortcut="Space+H">
         <param name="change" value="flip-x" />
       </key>
+      <key command="ChangeBrush" shortcut="Space+X">
+        <param name="change" value="flip-x" />
+      </key>
       <key command="ChangeBrush" shortcut="Space+V">
         <param name="change" value="flip-y" />
       </key>
+      <key command="ChangeBrush" shortcut="Space+Y">
+        <param name="change" value="flip-y" />
+      </key>
       <key command="ChangeBrush" shortcut="Space+D">
         <param name="change" value="flip-d" />
       </key>