diff --git a/src/game/game.js b/src/game/game.js
index f9506004..579a2b49 100644
--- a/src/game/game.js
+++ b/src/game/game.js
@@ -6,7 +6,8 @@
         C = driver.constants,
         map = require('./map'),
         market = require('./market'),
-        customPrototypes = require('./custom-prototypes');
+        customPrototypes = require('./custom-prototypes'),
+        system = { Function: { bind: Function.bind } };
 
     var findCacheFn = {
         [C.FIND_CREEPS]: (i) => !i.spawning,
@@ -505,7 +506,7 @@
                 !_.isObject(runCodeCache[userId].globals.require.cache.main) || !_.isFunction(
                     runCodeCache[userId].globals.require.cache.main.loop)) {
 
-                runCodeCache[userId].globals.require = requireFn.bind(runCodeCache[userId]);
+                runCodeCache[userId].globals.require = system.Function.bind.call(requireFn, runCodeCache[userId]);
                 runCodeCache[userId].globals.require.cache = {lodash: runCodeCache[userId].globals._};
                 runCodeCache[userId].globals.require.timestamp = runCodeCache[userId].runtimeData.userCodeTimestamp;
             }