diff --git a/ulib/support/mkcrypt.py b/ulib/support/mkcrypt.py
index a67664a..07b589b 100755
--- a/ulib/support/mkcrypt.py
+++ b/ulib/support/mkcrypt.py
@@ -18,7 +18,7 @@ if __name__ == '__main__':
 USAGE
     mkcrypt.py clear [salt]"""
         sys.exit(0)
-    elif args[0] == '--':
+    elif len(args) > 0 and args[0] == '--':
         args = args[1:]
 
     clpasswd = args[0:1] and args[0] or None