diff --git a/packages/interaction/src/InteractionManager.js b/packages/interaction/src/InteractionManager.js
index a5c6ac2..90f3f68 100644
--- a/packages/interaction/src/InteractionManager.js
+++ b/packages/interaction/src/InteractionManager.js
@@ -14,7 +14,7 @@
     interactiveTarget
 );
 
-const MOUSE_POINTER_ID = 'MOUSE';
+const MOUSE_POINTER_ID = 1;
 
 // helpers for hitTest() - only used inside hitTest()
 const hitTestEvent = {