diff --git a/test/index.html b/test/index.html
index b60e724fd..5ba72c52f 100644
--- a/test/index.html
+++ b/test/index.html
@@ -113,17 +113,27 @@
 
 				setProperty(window, '_ArrayBuffer', window.ArrayBuffer);
 				if (window.ArrayBuffer && window.Uint8Array && !new ArrayBuffer(0).slice) {
-					setProperty(window, 'ArrayBuffer', function(byteLength) {
-						var buffer = new _ArrayBuffer(byteLength);
-						buffer.slice = !byteLength ? Array.prototype.slice : function() {
-							var newBuffer = new _ArrayBuffer(byteLength),
-							    view = new Uint8Array(newBuffer);
+					setProperty(window, 'ArrayBuffer', (function() {
+						function ArrayBuffer(byteLength) {
+							var buffer = new _ArrayBuffer(byteLength);
+							buffer.slice = function() {
+								var newBuffer = new _ArrayBuffer(byteLength),
+								    view = new Uint8Array(newBuffer);
 
-							view.set(new Uint8Array(this));
-							return newBuffer;
-						};
-						return buffer;
-					});
+								view.set(new Uint8Array(this));
+								return newBuffer;
+							};
+							setProperty(buffer.slice, 'toString', sliceToString);
+							return buffer;
+						}
+						var reToString = /toString/g,
+						    nativeString = Function.prototype.toString.call(toString),
+						    bufferToString = _.constant(nativeString.replace(reToString, 'ArrayBuffer')),
+						    sliceToString = _.constant(nativeString.replace(reToString, 'slice'));
+
+						setProperty(ArrayBuffer, 'toString', bufferToString);
+						return ArrayBuffer;
+					}()));
 				}
 				setProperty(window, '_Float64Array', window.Float64Array);
 				setProperty(window, 'Float64Array', window.Float64Array ? function() {} : window.Uint8Array);
diff --git a/test/test.js b/test/test.js
index ddcdc42eb..ef5976860 100644
--- a/test/test.js
+++ b/test/test.js
@@ -387,19 +387,27 @@
 
     var _ArrayBuffer = ArrayBuffer;
     if (Uint8Array && new ArrayBuffer(0).slice) {
-      setProperty(root, 'ArrayBuffer', function(byteLength) {
-        var buffer = new _ArrayBuffer(byteLength);
-        buffer.slice = !byteLength ? slice : function() {
-          var newBuffer = new _ArrayBuffer(byteLength),
-              view = new Uint8Array(newBuffer);
+      setProperty(root, 'ArrayBuffer', (function() {
+        function ArrayBuffer(byteLength) {
+          var buffer = new _ArrayBuffer(byteLength);
+          buffer.slice = function() {
+            var newBuffer = new _ArrayBuffer(byteLength),
+                view = new Uint8Array(newBuffer);
 
-          view.set(new Uint8Array(this));
-          return newBuffer;
-        };
-        return buffer;
-      });
+            view.set(new Uint8Array(this));
+            return newBuffer;
+          };
+          setProperty(buffer.slice, 'toString', sliceToString);
+          return buffer;
+        }
+        var reToString = /toString/g,
+            nativeString = _fnToString.call(toString),
+            bufferToString = _.constant(nativeString.replace(reToString, 'ArrayBuffer')),
+            sliceToString = _.constant(nativeString.replace(reToString, 'slice'));
 
-      setPropertu(ArrayBuffer, 'toString', _.constant(String(toString).replace(/toString/g, 'ArrayBuffer')));
+        setProperty(ArrayBuffer, 'toString', bufferToString);
+        return ArrayBuffer;
+      }()));
     }
     var _Float64Array = root.Float64Array;
     setProperty(root, 'Float64Array', _Float64Array ? _.noop : root.Uint8Array);