diff --git a/babblesim/targets/blehci/syscfg.yml b/babblesim/targets/blehci/syscfg.yml
index aec4c4a4a..14a909e91 100644
--- a/babblesim/targets/blehci/syscfg.yml
+++ b/babblesim/targets/blehci/syscfg.yml
@@ -18,4 +18,4 @@
 
 syscfg.vals:
   BLE_LL_PUBLIC_DEV_ADDR: 0xbabb1e000001
-  BLE_HCI_TRANSPORT: uart
+  BLE_HCI_TRANSPORT_HS: uart