diff --git a/Makefile b/Makefile
index f104b9e..13e2eae 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,7 @@
-arduino: arduino/arduino.ino
+arduino: FORCE
 	arduino-cli compile --fqbn arduino:avr:mega arduino
 
 flash: arduino
 	arduino-cli upload -p /dev/ttyACM0 --fqbn arduino:avr:mega arduino
+
+FORCE: