diff --git a/charlieCube.ino b/charlieCube.ino
index 4011d86..54c6f27 100644
--- a/charlieCube.ino
+++ b/charlieCube.ino
@@ -30,6 +30,10 @@ void loop() {
       rainbow_random();
       break;
 
+    case TUNNEL:
+      tunnel();
+      break;
+
     case RAINBOWCORNER:
       rainbow_corner();
       break;     
diff --git a/config.h b/config.h
index 1e17c12..78b59f9 100644
--- a/config.h
+++ b/config.h
@@ -4,6 +4,7 @@
 typedef enum STATE {
   CHASETHEDOT,
   RAINBOWRANDOM,
+  TUNNEL,
   RAINBOWCORNER,
   PLANARFLOP3D
 };
diff --git a/cubeplex.h b/cubeplex.h
index d48218b..683fe63 100644
--- a/cubeplex.h
+++ b/cubeplex.h
@@ -582,7 +582,7 @@ int currentTimer = 0;
 int maxTimer = 6250;  // 100ms delay / 16uS interrupt time
 
 int nextState(int state) {
-  return  (state + 1) % 2;
+  return  (state + 1) % 3;
 }
 
 // the interrupt function to display the leds  (T2 = 8 bit timer)