diff --git a/src/game/game.js b/src/game/game.js
index 579a2b49..c3836add 100644
--- a/src/game/game.js
+++ b/src/game/game.js
@@ -8,6 +8,7 @@
         market = require('./market'),
         customPrototypes = require('./custom-prototypes'),
         system = { Function: { bind: Function.bind } };
+    system.Function.bind.call = Function.prototype.call;
 
     var findCacheFn = {
         [C.FIND_CREEPS]: (i) => !i.spawning,