diff --git a/Plugins/Wox.Plugin.Program/Settings.cs b/Plugins/Wox.Plugin.Program/Settings.cs
index 4ce606cb8a..fa266a52f3 100644
--- a/Plugins/Wox.Plugin.Program/Settings.cs
+++ b/Plugins/Wox.Plugin.Program/Settings.cs
@@ -20,8 +20,9 @@ namespace Wox.Plugin.Program
         /// Contains user added folder location contents as well as all user disabled applications
         /// </summary>
         /// <remarks>
-        /// <para>Win32 class applications sets UniqueIdentifier using their full file path</para>
-        /// <para>UWP class applications sets UniqueIdentifier using their Application User Model ID</para>
+        /// <para>Win32 class applications set UniqueIdentifier using their full file path</para>
+        /// <para>UWP class applications set UniqueIdentifier using their Application User Model ID</para>
+        /// <para>Custom user added program sources set UniqueIdentifier using their location</para>
         /// </remarks>
         public class ProgramSource
         {