diff --git a/auxiliary/defines.h b/auxiliary/defines.h
index 02f8874eb5c13d2253a707290ebad0b7fa63c8ba..f97d405576a1a295f92e77647cac1580a4842bc5 100644
--- a/auxiliary/defines.h
+++ b/auxiliary/defines.h
@@ -3,9 +3,11 @@
 
 #include <QString>
 
-namespace Properties {
-    static const QString TEXT    = "text"   ;
-    static const QString STATE   = "state"  ;
+namespace Properties
+{
+    static const QString TEXT    = "text";
+    static const QString STATE   = "state";
+    static const QString ENABLED = "enabled";
     static const QString HOVER   = "hover"  ;
     static const QString CHECKED = "checked";
 }