diff --git a/usrc/main.cpp b/usrc/main.cpp
index 5d43fc6..1d5a458 100644
--- a/usrc/main.cpp
+++ b/usrc/main.cpp
@@ -126,7 +126,7 @@ void umain() {
   board_init();
 
   Pin_t debugLight = PC_DEBUG_LIGHT_GPIO;
-  if (deviceId == 20) {
+  if (deviceId == 20 || deviceId == 90) {
     debugLight = PC_SUBBOARD_20_70_LIGHT_GPIO;
   }