diff --git a/cocotb/caravel_cocotb/__main__.py b/cocotb/caravel_cocotb/__main__.py
index b7f99b7..0ff23c5 100755
--- a/cocotb/caravel_cocotb/__main__.py
+++ b/cocotb/caravel_cocotb/__main__.py
@@ -102,6 +102,10 @@ def main():
         action="store_true",
         help="don't run gen_gpio_defaults script",
     )
+    parser.add_argument(
+        "-gen_defaults_dir",
+        help="directory to run gen_gpio_defaults script <dir>/scripts/gen_gpio_defaults.py default is caravel_root",
+    )
     parser.add_argument(
         "-sdfs_dir",
         "-sdfs",
diff --git a/cocotb/caravel_cocotb/version.py b/cocotb/caravel_cocotb/version.py
index b7e1990..64c7d51 100644
--- a/cocotb/caravel_cocotb/version.py
+++ b/cocotb/caravel_cocotb/version.py
@@ -1 +1 @@
-__version__ = "1.2.5"
+__version__ = "1.2.6"