diff --git a/URLNotesGrabberCORE/Program.cs b/URLNotesGrabberCORE/Program.cs
index 553cb83..c1476a6 100644
--- a/URLNotesGrabberCORE/Program.cs
+++ b/URLNotesGrabberCORE/Program.cs
@@ -441,6 +441,9 @@ namespace URLNotesGrabberCORE
             Console.WriteLine("-updatepaths [rootPath]\t Read .tumblr/.tmblrpriv metadata from <root>\\Index and set Blogs.TTFolderPath");
 
             Console.WriteLine("-importposts [path-to-posts.db]\t One-time migration: copy legacy ThreeTxtFileHelper posts.db rows into TL.db");
+
+            Console.WriteLine();
+            Console.WriteLine("Exit status: 0 = success; 1 = unexpected error; 2 = usage error (unknown command or bad/missing arguments)");
         }
 
         static void WritePostBlogsToFile(string outPath)