diff --git a/src/components/cursor-controller.js b/src/components/cursor-controller.js
index a66fd059b840fde757803eae6ed2ba245d4a1e33..6183eb6664331d6615d0e53776556b03d9c9ad58 100644
--- a/src/components/cursor-controller.js
+++ b/src/components/cursor-controller.js
@@ -312,7 +312,7 @@ AFRAME.registerComponent("cursor-controller", {
       !this.isMobile ||
       this.hasPointingDevice ||
       !this.activeTouch ||
-      e.touches.some(touch => touch.identifier === this.activeTouch.identifier)
+      this.some(e.touches, touch => touch.identifier === this.activeTouch.identifier)
     ) {
       return;
     }
@@ -443,5 +443,12 @@ AFRAME.registerComponent("cursor-controller", {
     } else {
       this.controller = null;
     }
+  },
+
+  some: function(a, fn) {
+    for (let i = 0; i < a.length; a++) {
+      if (fn(a[i])) return true;
+    }
+    return false;
   }
 });