diff --git a/ArduPlane/Parameters.cpp b/ArduPlane/Parameters.cpp
index 9a1c5fdb76..f49fb257ae 100644
--- a/ArduPlane/Parameters.cpp
+++ b/ArduPlane/Parameters.cpp
@@ -662,7 +662,7 @@ const AP_Param::Info Plane::var_info[] = {
 
     // @Param: ALT_HOLD_FBWCM
     // @DisplayName: Minimum altitude for FBWB mode
-    // @Description: This is the minimum altitude in centimeters (above home) that FBWB and CRUISE modes will allow. If you attempt to descend below this altitude then the plane will level off. A value of zero means no limit.
+    // @Description: This is the minimum altitude in centimeters (above home) that FBWB and CRUISE modes will allow. If you attempt to descend below this altitude then the plane will level off. It will also force a climb to this altitude if below in these modes. A value of zero means no limit.
     // @Units: cm
     // @User: Standard
     GSCALAR(FBWB_min_altitude_cm,   "ALT_HOLD_FBWCM", ALT_HOLD_FBW_CM),