diff --git a/firmware/drivers/lcd.c b/firmware/drivers/lcd.c
index 21c6a959c4..4a5999d7ee 100644
--- a/firmware/drivers/lcd.c
+++ b/firmware/drivers/lcd.c
@@ -349,11 +349,6 @@ void lcd_define_pattern (int which,char *pattern,int length)
 	lcd_write(false,pattern[i]);
 }
 
-void lcd_update(void)
-{
-    /* dummy */
-}
-
 #endif
 
 #endif
diff --git a/firmware/drivers/lcd.h b/firmware/drivers/lcd.h
index d55edbe6d8..70867c1081 100644
--- a/firmware/drivers/lcd.h
+++ b/firmware/drivers/lcd.h
@@ -29,7 +29,12 @@ extern void lcd_init(void);
 extern void lcd_clear_display(void);
 extern void lcd_backlight(bool on);
 extern void lcd_puts(int x, int y, char *string);
-extern void lcd_update(void);
+
+#ifdef SIMULATOR
+  extern void lcd_update(void);
+#else
+  #define lcd_update()
+#endif
 
 #ifdef HAVE_LCD_CHARCELLS
 #    define LCD_ICON_BATTERY         0