diff --git a/libraries/GCS_MAVLink/message_definitions/ardupilotmega.xml b/libraries/GCS_MAVLink/message_definitions/ardupilotmega.xml
index 4c54a82d08281c80f9980ed2ea415815ad881adb..8a9ae52ba2f2407856e3d9f7b8a68577d29c1670 100644
--- a/libraries/GCS_MAVLink/message_definitions/ardupilotmega.xml
+++ b/libraries/GCS_MAVLink/message_definitions/ardupilotmega.xml
@@ -89,7 +89,7 @@
 	      <description>Breached minimum altitude</description>
 	    </entry>
 	    <entry name="FENCE_BREACH_MAXALT" value="2">
-	      <description>Breached minimum altitude</description>
+	      <description>Breached maximum altitude</description>
 	    </entry>
 	    <entry name="FENCE_BREACH_BOUNDARY" value="3">
 	      <description>Breached fence boundary</description>