diff --git a/autowiring/MicroBolt.h b/autowiring/MicroBolt.h
index 1f93bb236..285dcca1e 100644
--- a/autowiring/MicroBolt.h
+++ b/autowiring/MicroBolt.h
@@ -36,6 +36,7 @@ struct MicroBolt:
       LoopInject<Sigils>(ctxt)...,
       false
     };
+    (void)dummy;
   }
   void ContextCreated(void) override;
 };