diff --git a/panels.layouts.yml b/panels.layouts.yml
index 048f098..330046a 100644
--- a/panels.layouts.yml
+++ b/panels.layouts.yml
@@ -1,6 +1,6 @@
 onecol:
   label: Single column
-  category: Columns: 1
+  category: 'Columns: 1'
   path: plugins/layouts/onecol
   icon: onecol.png
   css: onecol.css
@@ -11,7 +11,7 @@ onecol:
 
 twocol:
   label: Two column
-  category: Columns: 2
+  category: 'Columns: 2'
   path: plugins/layouts/twocol
   icon: twocol.png
   css: twocol.css