diff --git a/UI/Scheduler/GNUmakefile b/UI/Scheduler/GNUmakefile
index 9f348fe9a..7e56e8bdf 100644
--- a/UI/Scheduler/GNUmakefile
+++ b/UI/Scheduler/GNUmakefile
@@ -38,6 +38,7 @@ SchedulerUI_OBJC_FILES =		\
 	UIxCalMonthOverview.m		\
 	UIxCalYearOverview.m		\
 	UIxCalInlineMonthOverview.m	\
+	UIxComponentEditor.m		\
 	UIxAppointmentView.m		\
 	UIxAppointmentEditor.m		\
 	UIxAppointmentProposal.m	\