diff --git a/content/examples/Basics/Input/MouseSignals/MouseSignals.pde b/content/examples/Basics/Input/MouseSignals/MouseSignals.pde
index 32824354d..939211f8c 100644
--- a/content/examples/Basics/Input/MouseSignals/MouseSignals.pde
+++ b/content/examples/Basics/Input/MouseSignals/MouseSignals.pde
@@ -19,8 +19,6 @@ void setup() {
   bvals = new int[width];
 }
 
-int arrayindex = 0;
-
 void draw() {
   background(102);