diff --git a/arduino/src/sketch.ino b/arduino/src/sketch.ino
index 2350d08..e0d60e4 100644
--- a/arduino/src/sketch.ino
+++ b/arduino/src/sketch.ino
@@ -17,7 +17,7 @@ void loop()
   if(Serial.available()) {
     incomingByte = Serial.read();
   
-    switch (var) {
+    switch (mode) {
       
       case 126: