diff --git a/src/luamb/_luamb.py b/src/luamb/_luamb.py
index f2c7262..783bf93 100644
--- a/src/luamb/_luamb.py
+++ b/src/luamb/_luamb.py
@@ -252,9 +252,13 @@ def cmd_mk(self, argv):
 
         if args.help or (not args.env_name and not args.list_versions):
             output = self._call_hererocks(['--help'], capture_output=True)
-            hererocks_help = output.partition("optional arguments:\n")[2]
+            if sys.version_info >= (3, 10):
+                options_heading = "options:\n"
+            else:
+                options_heading = "optional arguments:\n"
+            hererocks_help = output.partition(options_heading)[2]
             parser.print_help()
-            print('\nhererocks arguments:')
+            print('\nhererocks options:')
             print(hererocks_help)
             return