diff --git a/ampel-firmware/ampel-firmware.ino b/ampel-firmware/ampel-firmware.ino
index 923d4a6b7ab4e4e12a14026aad420232e345632d..d1c9cff5751af04d78d18a722a75f5dc246c81d2 100644
--- a/ampel-firmware/ampel-firmware.ino
+++ b/ampel-firmware/ampel-firmware.ino
@@ -67,8 +67,6 @@ void preinit() {
 #endif
 }
 
-String commandString;
-
 /*****************************************************************
  * Setup                                                         *
  *****************************************************************/