diff --git a/ArduCopter/Parameters.cpp b/ArduCopter/Parameters.cpp
index b471b0c7f3..5bb135e977 100644
--- a/ArduCopter/Parameters.cpp
+++ b/ArduCopter/Parameters.cpp
@@ -332,7 +332,7 @@ const AP_Param::Info Copter::var_info[] = {
     // @Param: FRAME_TYPE
     // @DisplayName: Frame Type (+, X, V, etc)
     // @Description: Controls motor mixing for multicopters.  Not used for Tri or Traditional Helicopters.
-    // @Values: 0:Plus, 1:X, 2:V, 3:H, 4:V-Tail, 5:A-Tail, 10:Y6B, 11:Y6F, 12:BetaFlightX, 13:DJIX, 14:ClockwiseX
+    // @Values: 0:Plus, 1:X, 2:V, 3:H, 4:V-Tail, 5:A-Tail, 10:Y6B, 11:Y6F, 12:BetaFlightX, 13:DJIX, 14:ClockwiseX, 15: I
     // @User: Standard
     // @RebootRequired: True
     GSCALAR(frame_type, "FRAME_TYPE", HAL_FRAME_TYPE_DEFAULT),