diff --git a/ArduSub/Sub.h b/ArduSub/Sub.h
index 72461fc57f..b0ad0c113f 100644
--- a/ArduSub/Sub.h
+++ b/ArduSub/Sub.h
@@ -413,7 +413,7 @@ private:
 
     // AC_Fence library to reduce fly-aways
 #if AC_FENCE == ENABLED
-    AC_Fence fence{ahrs};
+    AC_Fence fence;
 #endif
 
 #if AVOIDANCE_ENABLED == ENABLED