diff --git a/firmware/controllers/trigger/trigger_decoder.h b/firmware/controllers/trigger/trigger_decoder.h
index 4027858409..ec2156d6b4 100644
--- a/firmware/controllers/trigger/trigger_decoder.h
+++ b/firmware/controllers/trigger/trigger_decoder.h
@@ -119,7 +119,7 @@ public:
 	/**
 	 * TRUE if we know where we are
 	 */
-	bool shaft_is_synchronized;
+	bool shaft_is_synchronized = false;
 	efitick_t mostRecentSyncTime;
 
 	Timer previousEventTimer;