diff --git a/batchasync.js b/batchasync.js
index 75e7e11..f031136 100644
--- a/batchasync.js
+++ b/batchasync.js
@@ -1,71 +1,70 @@
-(function (exports) {
-'use strict';
+(function(exports) {
+    "use strict";
 
-exports.batchAsync = function (limit, arr, doStuff) {
-	arr = arr.slice(0);
-	return new Promise(function(resolve, reject) {
-		var total = arr.length;
-		var active = 0;
-		var results = [];
-		var error;
+    exports.batchAsync = function(limit, arr, doStuff) {
+        arr = arr.slice(0);
+        return new Promise(function(resolve, reject) {
+            var total = arr.length;
+            var active = 0;
+            var results = [];
+            var error;
 
-		function doMoreStuff() {
-			// Don't take on any more tasks if we've errored,
-			// or if too many are already in progress
-			if (error || active > limit) {
-				return;
-			}
+            function doMoreStuff() {
+                // Don't take on any more tasks if we've errored,
+                // or if too many are already in progress
+                if (error || active > limit) {
+                    return;
+                }
 
-			// If there are no more tasks to start, return
-			if (!arr.length) {
-				// If everything is also *finished*, resolve
-				if (active < 1) {
-					resolve(results);
-				}
-				return;
-			}
+                // If there are no more tasks to start, return
+                if (!arr.length) {
+                    // If everything is also *finished*, resolve
+                    if (active < 1) {
+                        resolve(results);
+                    }
+                    return;
+                }
 
-			// We need to dequeue the task here so the index is correct
-			// (keep in mind we want to support sync and async)
-			var index = total - arr.length;
-			var task = arr.shift();
-			active += 1;
+                // We need to dequeue the task here so the index is correct
+                // (keep in mind we want to support sync and async)
+                var index = total - arr.length;
+                var task = arr.shift();
+                active += 1;
 
-			// Spawn another task immediately,
-			// which will be stopped if we're at the limit
-			doMoreStuff();
+                // Spawn another task immediately,
+                // which will be stopped if we're at the limit
+                doMoreStuff();
 
-			var p;
-			try {
-				p = doStuff(task);
-			} catch (e) {
-				// we need to handle, and bubble, synchronous errors
-				error = e;
-				reject(e);
-				throw e;
-			}
-			// Do stuff and then decrease the active counter when done
-			// add support for sync by rapping in a promise
-			Promise.resolve(p)
-				.then(function(result) {
-					if ('undefined' === typeof result) {
-						throw new Error(
-							"result was 'undefined'. Please return 'null' to signal that you didn't just forget to return another promise."
-						);
-					}
-					active -= 1;
-					results[index] = result;
-				})
-				.then(doMoreStuff)
-				.catch(function(e) {
-					// handle async errors
-					error = e;
-					reject(e);
-				});
-		}
+                var p;
+                try {
+                    p = doStuff(task);
+                } catch (e) {
+                    // we need to handle, and bubble, synchronous errors
+                    error = e;
+                    reject(e);
+                    throw e;
+                }
+                // Do stuff and then decrease the active counter when done
+                // add support for sync by rapping in a promise
+                Promise.resolve(p)
+                    .then(function(result) {
+                        if ("undefined" === typeof result) {
+                            throw new Error(
+                                "result was 'undefined'. Please return 'null' to signal that you didn't just forget to return another promise."
+                            );
+                        }
+                        active -= 1;
+                        results[index] = result;
+                    })
+                    .then(doMoreStuff)
+                    .catch(function(e) {
+                        // handle async errors
+                        error = e;
+                        reject(e);
+                    });
+            }
 
-		doMoreStuff();
-	});
-};
-
-}('undefined' !== typeof window ? window : module.exports));
+            doMoreStuff();
+        });
+    };
+})("undefined" !== typeof window ? window : module.exports);