diff --git a/ArduCopter/Parameters.pde b/ArduCopter/Parameters.pde
index 1979c011f9..ed4fc6bf39 100644
--- a/ArduCopter/Parameters.pde
+++ b/ArduCopter/Parameters.pde
@@ -1089,7 +1089,7 @@ const AP_Param::Info var_info[] PROGMEM = {
 #endif
 
 #if AP_TERRAIN_AVAILABLE
-    // @Group: TERRAIN
+    // @Group: TERRAIN_
     // @Path: ../libraries/AP_Terrain/AP_Terrain.cpp
     GOBJECT(terrain,                "TERRAIN_", AP_Terrain),
 #endif