diff --git a/v3/src/physics/index.js b/v3/src/physics/index.js
index 8c4fefd94..86b2fa616 100644
--- a/v3/src/physics/index.js
+++ b/v3/src/physics/index.js
@@ -3,6 +3,6 @@
 module.exports = {
     Arcade: require('./arcade'),
     Impact: require('./impact'),
-    Matter: require('./matter-js'),
+    Matter: require('./matter-js/CustomMain'),
     PolyDecomp: require('./poly-decomp')
 };