diff --git a/ArduCopter/Parameters.pde b/ArduCopter/Parameters.pde
index 8d357f2aaa1f15a2e2dd6795071538077618a8e9..5f779fa75e33536b8ac80e0cb57cacd32bd70e40 100644
--- a/ArduCopter/Parameters.pde
+++ b/ArduCopter/Parameters.pde
@@ -73,7 +73,7 @@ const AP_Param::Info var_info[] PROGMEM = {
     // @Param: SONAR_TYPE
     // @DisplayName: Sonar type
     // @Description: Used to adjust scaling to match the sonar used (only Maxbotix sonars are supported at this time)
-    // @Values: 0:XL-EZ0,1:LV-EZ0,2:XLL-EZ0,3:HRLV
+    // @Values: 0:XL-EZ0 / XL-EZ4,1:LV-EZ0,2:XLL-EZ0,3:HRLV
     // @User: Standard
     GSCALAR(sonar_type,     "SONAR_TYPE",           AP_RANGEFINDER_MAXSONARXL),