diff --git a/preferences.xml b/preferences.xml
index 097206780..ba591ae26 100644
--- a/preferences.xml
+++ b/preferences.xml
@@ -262,7 +262,8 @@ Started September 2000 by David Megginson, david@megginson.com
   </ATC>
 
   <ai-traffic>
-   <enabled type="bool">true</enabled>
+   <enabled type="bool">true</enabled>
+   <level type="int">2</level>
   </ai-traffic>
 
   <ai>