diff --git a/firmware/config/boards/hellen/hellen-112-17/connectors/main.yaml b/firmware/config/boards/hellen/hellen-112-17/connectors/main.yaml
index 4c0a7c34ea..44658cda76 100644
--- a/firmware/config/boards/hellen/hellen-112-17/connectors/main.yaml
+++ b/firmware/config/boards/hellen/hellen-112-17/connectors/main.yaml
@@ -20,6 +20,10 @@ pins:
     class: analog_inputs
     ts_name: 107 A/C pressure
     function: 107 A/C pressure
+  - pin: 108
+    function: Sometimes GND
+    type: GND
+
   - pin: 109
     class: analog_inputs
     function: Analog 109
@@ -267,6 +271,9 @@ info:
     - pin: 107
       x: 324
       y: 345
+    - pin: 108
+      x: 360
+      y: 345
     - pin: 109
       x: 394
       y: 345