diff --git a/lodash.src.js b/lodash.src.js
index c7ed50d61..6befd3fd8 100644
--- a/lodash.src.js
+++ b/lodash.src.js
@@ -6541,7 +6541,7 @@
      */
     function sortByAll(collection) {
       var args = arguments;
-      if (args.length == 4 && isIterateeCall(args[1], args[2], args[3])) {
+      if (args.length > 3 && isIterateeCall(args[1], args[2], args[3])) {
         args = [collection, args[1]];
       }
       var index = -1,
diff --git a/test/test.js b/test/test.js
index b5e57e55d..7084c5b8a 100644
--- a/test/test.js
+++ b/test/test.js
@@ -11809,8 +11809,14 @@
         { 'a': 'y', '0': 2 }
       ];
 
-      var actual = _.reduce([['a']], _.sortByAll, objects);
-      deepEqual(actual, [objects[0], objects[2], objects[1], objects[3]]);
+      var funcs = [_.sortByAll, _.partialRight(_.sortByAll, 'bogus')],
+          expected = _.map(funcs, _.constant([objects[0], objects[2], objects[1], objects[3]]));
+
+      var actual = _.map(funcs, function(func) {
+        return _.reduce([['a']], func, objects);
+      });
+
+      deepEqual(actual, expected);
     });
   }());