diff --git a/firmware/config/boards/hellen/hellen121vag/connectors/main.yaml b/firmware/config/boards/hellen/hellen121vag/connectors/main.yaml
index c3554094b0..6998a29103 100644
--- a/firmware/config/boards/hellen/hellen121vag/connectors/main.yaml
+++ b/firmware/config/boards/hellen/hellen121vag/connectors/main.yaml
@@ -173,6 +173,9 @@ pins:
     function: CAN bus high
     type: can
 
+  - pin: 63a
+    function: oxygen sensor unused
+
   - pin: 65a
     id: H14
     class: outputs