diff --git a/firmware/Makefile b/firmware/Makefile
index 3010f0c..fb82ebd 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -1,6 +1,6 @@
 PROJECT=pentabug
 
-APPS = buggy mariotheme geiger ducklings blinker
+APPS = buggy mariotheme geiger ducklings wuerfel blinker
 
 OPTIMIZATION = -Os
 MCU = atmega88pa