1 files changed, 4 insertions, 1 deletions

diff --git a/uisimulator/x11/Makefile b/uisimulator/x11/Makefile
index 5a22f83c8f..ea511474a6 100644
--- a/uisimulator/x11/Makefile
+++ b/uisimulator/x11/Makefile
@@ -90,7 +90,7 @@ FIRMSRCS = $(LCDSRSC) sprintf.c id3.c debug.c usb.c mpeg.c power.c\
 
 APPS = main.c tree.c menu.c credits.c main_menu.c language.c\
         playlist.c wps.c wps-display.c settings.c status.c icons.c\
-        screens.c peakmeter.c viewer.c
+        screens.c peakmeter.c viewer.c sleeptimer.c
 
 MENUS = games_menu.c demo_menu.c settings_menu.c sound_menu.c
 
@@ -215,6 +215,9 @@ $(OBJDIR)/main.o: $(APPDIR)/main.c
 $(OBJDIR)/wps.o: $(APPDIR)/wps.c
         $(CC) $(APPCFLAGS) -c $< -o $@
 
+$(OBJDIR)/sleeptimer.o: $(APPDIR)/sleeptimer.c
+        $(CC) $(APPCFLAGS) -c $< -o $@
+
 $(OBJDIR)/viewer.o: $(APPDIR)/viewer.c
         $(CC) $(APPCFLAGS) -c $< -o $@