diff --git a/OpTestConfiguration.py b/OpTestConfiguration.py
index af76d3641..5be8ceef7 100644
--- a/OpTestConfiguration.py
+++ b/OpTestConfiguration.py
@@ -66,7 +66,7 @@ def parse_args(self, argv=None):
         bmcChoices = ['AMI','FSP', 'OpenBMC', 'qemu']
         # Loop through any addons let it append the extra bmcChoices
         for opt in optAddons:
-            bmcChoices = optAddons[opt].AddBMCType(bmcChoices)
+            bmcChoices = optAddons[opt].addBMCType(bmcChoices)
         bmcgroup.add_argument("--bmc-type",
                               choices=bmcChoices,
                               help="Type of service processor")