diff --git a/src/mainboard/siemens/mc_tcu3/lcd_panel.c b/src/mainboard/siemens/mc_tcu3/lcd_panel.c
index 1d1f3f96cc..f48bd56386 100644
--- a/src/mainboard/siemens/mc_tcu3/lcd_panel.c
+++ b/src/mainboard/siemens/mc_tcu3/lcd_panel.c
@@ -67,6 +67,7 @@ int setup_lcd_panel(void)
 		break;
 	default:
 		printk(BIOS_ERR, "LCD: No supported panel found.\n");
+		return 1;
 		break;
 	}