diff --git a/src/Preference.h b/src/Preference.h
index f3cd2bbb82..ae74a39203 100644
--- a/src/Preference.h
+++ b/src/Preference.h
@@ -120,7 +120,7 @@ public:
 		return m_defaultValue;
 	}
 
-	operator const T () const
+	operator const T &() const
 	{
 		return Get();
 	}