diff --git a/docker/ha/sbc.yaml b/docker/ha/sbc.yaml
index b7f0e95..a833875 100644
--- a/docker/ha/sbc.yaml
+++ b/docker/ha/sbc.yaml
@@ -12,5 +12,5 @@ logger:
     format: "{ date:HH:mm:ss } {level|size=5} {class-name} {message}"
 extension_boards:
   vendor: rpi
-  inputBoard: nohat
-  outputBoard: nohat
+  input_board: nohat
+  output_board: nohat