diff --git a/unstable/xdg-shell/xdg-shell-unstable-v6.xml b/unstable/xdg-shell/xdg-shell-unstable-v6.xml
index 858c13efec7c3ba8a4464c44f193cda2d44ad8f1..fc414851203453d26d5832afcc3f189fdd3e2faa 100644
--- a/unstable/xdg-shell/xdg-shell-unstable-v6.xml
+++ b/unstable/xdg-shell/xdg-shell-unstable-v6.xml
@@ -37,10 +37,14 @@
 
     <enum name="error">
       <entry name="role" value="0" summary="given wl_surface has another role"/>
-      <entry name="defunct_surfaces" value="1" summary="xdg_shell was destroyed before children"/>
-      <entry name="not_the_topmost_popup" value="2" summary="the client tried to map or destroy a non-topmost popup"/>
-      <entry name="invalid_popup_parent" value="3" summary="the client specified an invalid popup parent surface"/>
-      <entry name="invalid_surface_state" value="4" summary="the client provided an invalid surface state"/>
+      <entry name="defunct_surfaces" value="1"
+	     summary="xdg_shell was destroyed before children"/>
+      <entry name="not_the_topmost_popup" value="2"
+	     summary="the client tried to map or destroy a non-topmost popup"/>
+      <entry name="invalid_popup_parent" value="3"
+	     summary="the client specified an invalid popup parent surface"/>
+      <entry name="invalid_surface_state" value="4"
+	     summary="the client provided an invalid surface state"/>
     </enum>
 
     <request name="destroy" type="destructor">