diff --git a/Orb_AutF4.jl b/Orb_AutF4.jl
index 7205e9f..b464946 100644
--- a/Orb_AutF4.jl
+++ b/Orb_AutF4.jl
@@ -159,10 +159,10 @@ function parse_commandline()
             help = "Set number of cpus used by solver (default: auto)"
             arg_type = Int
             required = false
-      #   "-N"
-      #       help = "Consider automorphisms of free group on N generators (default: N=3)"
-      #       arg_type = Int
-      #       default = 2
+        "-N"
+            help = "Consider automorphisms of free group on N generators (default: N=2)"
+            arg_type = Int
+            default = 2
     end
 
     return parse_args(s)