diff --git a/libraries/AC_WPNav/AC_WPNav.cpp b/libraries/AC_WPNav/AC_WPNav.cpp
index f877aae2f8..4b2b688a6b 100644
--- a/libraries/AC_WPNav/AC_WPNav.cpp
+++ b/libraries/AC_WPNav/AC_WPNav.cpp
@@ -19,7 +19,7 @@ const AP_Param::GroupInfo AC_WPNav::var_info[] = {
     // @DisplayName: Waypoint Radius
     // @Description: Defines the distance from a waypoint, that when crossed indicates the wp has been hit.
     // @Units: cm
-    // @Range: 10 1000
+    // @Range: 5 1000
     // @Increment: 1
     // @User: Standard
     AP_GROUPINFO("RADIUS",      1, AC_WPNav, _wp_radius_cm, WPNAV_WP_RADIUS),