diff --git a/src/pixi/InteractionData.js b/src/pixi/InteractionData.js
index fa84a6d..b0d8a6a 100644
--- a/src/pixi/InteractionData.js
+++ b/src/pixi/InteractionData.js
@@ -49,8 +49,8 @@
     var global = this.global;
 
     // do a cheeky transform to get the mouse coords;
-    var a00 = worldTransform.a, a01 = worldTransform.b, a02 = worldTransform.tx,
-        a10 = worldTransform.c, a11 = worldTransform.d, a12 = worldTransform.ty,
+    var a00 = worldTransform.a, a01 = worldTransform.c, a02 = worldTransform.tx,
+        a10 = worldTransform.b, a11 = worldTransform.d, a12 = worldTransform.ty,
         id = 1 / (a00 * a11 + a01 * -a10);
 
     point = point || new PIXI.Point();