diff --git a/preferences.xml b/preferences.xml
index 5a0540150..5d909f8f7 100644
--- a/preferences.xml
+++ b/preferences.xml
@@ -31,6 +31,7 @@ Started September 2000 by David Megginson, david@megginson.com
55.0
Aircraft/c172/Panels/c172-panel.xml
+ -305
true