diff --git a/lodash.js b/lodash.js
index 7b8fd7a35..4c50ece9e 100644
--- a/lodash.js
+++ b/lodash.js
@@ -3574,7 +3574,7 @@
       if (object === source) {
         return;
       }
-      if (!(isArray(source) || isTypedArray(source))) {
+      if (!(isArray(source) || isBuffer(source) || isTypedArray(source))) {
         var props = baseKeysIn(source);
       }
       arrayEach(props || source, function(srcValue, key) {
@@ -13647,22 +13647,23 @@
      * // => { '1': ['a', 'c'], '2': ['b'] }
      */
     function transform(object, iteratee, accumulator) {
-      var isArr = isArray(object) || isTypedArray(object);
-      iteratee = getIteratee(iteratee, 4);
+      var isArr = isArray(object),
+          isArrLike = isArr || isBuffer(object) || isTypedArray(object);
 
+      iteratee = getIteratee(iteratee, 4);
       if (accumulator == null) {
-        if (isArr || isObject(object)) {
-          var Ctor = object.constructor;
-          if (isArr) {
-            accumulator = isArray(object) ? new Ctor : [];
-          } else {
-            accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};
-          }
-        } else {
+        var Ctor = object && object.constructor;
+        if (isArrLike) {
+          accumulator = isArr ? new Ctor : [];
+        }
+        else if (isObject(object)) {
+          accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};
+        }
+        else {
           accumulator = {};
         }
       }
-      (isArr ? arrayEach : baseForOwn)(object, function(value, index, object) {
+      (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {
         return iteratee(accumulator, value, index, object);
       });
       return accumulator;