diff --git a/wpilibj/src/sim/java/edu/wpi/first/wpilibj/Joystick.java b/wpilibj/src/sim/java/edu/wpi/first/wpilibj/Joystick.java
index 4eca2aa..35a9d95 100644
--- a/wpilibj/src/sim/java/edu/wpi/first/wpilibj/Joystick.java
+++ b/wpilibj/src/sim/java/edu/wpi/first/wpilibj/Joystick.java
@@ -16,11 +16,11 @@
  */
 public class Joystick extends GenericHID {
 
-    static final byte kDefaultXAxis = 1;
-    static final byte kDefaultYAxis = 2;
-    static final byte kDefaultZAxis = 3;
-    static final byte kDefaultTwistAxis = 3;
-    static final byte kDefaultThrottleAxis = 4;
+    static final byte kDefaultXAxis = 0;
+    static final byte kDefaultYAxis = 1;
+    static final byte kDefaultZAxis = 2;
+    static final byte kDefaultTwistAxis = 2;
+    static final byte kDefaultThrottleAxis = 3;
     static final int kDefaultTriggerButton = 1;
     static final int kDefaultTopButton = 2;