diff --git a/src/dune/__main__.py b/src/dune/__main__.py
index 421f10cb..dfb49537 100644
--- a/src/dune/__main__.py
+++ b/src/dune/__main__.py
@@ -131,6 +131,9 @@
 
          elif args.version:
             print ("DUNE "+version_full())
+            
+         else:
+            print("Unsupported or wrong command")
 
       except KeyboardInterrupt:
          pass