diff --git a/src/Credfeto.ChangeLog.Cmd/Program.cs b/src/Credfeto.ChangeLog.Cmd/Program.cs
index 6677e9bf..8614ef9b 100644
--- a/src/Credfeto.ChangeLog.Cmd/Program.cs
+++ b/src/Credfeto.ChangeLog.Cmd/Program.cs
@@ -79,6 +79,8 @@ private static async Task<int> Main(string[] args)
                     return ERROR;
                 }
 
+                Console.WriteLine("ERROR: No known action specified");
+
                 return ERROR;
             }
             catch (Exception exception)