diff --git a/ArduCopter/wscript b/ArduCopter/wscript
index 4a98ffcd0b..7f21d6669a 100644
--- a/ArduCopter/wscript
+++ b/ArduCopter/wscript
@@ -26,6 +26,7 @@ def build(bld):
             'AP_WheelEncoder',
             'AP_Winch',
             'AP_Follow',
+            'AP_LTM_Telem',
             'AP_Devo_Telem',
             'AP_OSD',
             'AC_AutoTune',