diff --git a/firmware/backlight.c b/firmware/backlight.c
index af4dfeadd2..e006d3aeb5 100644
--- a/firmware/backlight.c
+++ b/firmware/backlight.c
@@ -283,6 +283,7 @@ void backlight_set_on_when_charging(bool yesno) {(void)yesno;}
 #ifdef HAVE_REMOTE_LCD
 void remote_backlight_on(void) {}
 void remote_backlight_off(void) {}
+void remote_backlight_set_timeout(int index) {(void)index;}
 #endif
 #endif /* #ifdef CONFIG_BACKLIGHT */
 
diff --git a/uisimulator/common/stubs.c b/uisimulator/common/stubs.c
index 043744388c..3b61e2781c 100644
--- a/uisimulator/common/stubs.c
+++ b/uisimulator/common/stubs.c
@@ -133,6 +133,11 @@ void backlight_set_on_when_charging(bool beep)
   (void)beep;
 }
 
+void remote_backlight_set_timeout(int index)
+{
+  (void)index;
+}
+
 int rtc_read(int address)
 {
   time_t now = time(NULL);