diff --git a/src/Illuminate/Foundation/helpers.php b/src/Illuminate/Foundation/helpers.php
index 10240934ed23..ef2c9af0c988 100644
--- a/src/Illuminate/Foundation/helpers.php
+++ b/src/Illuminate/Foundation/helpers.php
@@ -157,11 +157,12 @@ function auth($guard = null)
      *
      * @param  int    $status
      * @param  array  $headers
+     * @param  string $fallback
      * @return \Illuminate\Http\RedirectResponse
      */
-    function back($status = 302, $headers = [])
+    function back($status = 302, $headers = [], $fallback = false)
     {
-        return app('redirect')->back($status, $headers);
+        return app('redirect')->back($status, $headers, $fallback);
     }
 }
 
diff --git a/src/Illuminate/Routing/Redirector.php b/src/Illuminate/Routing/Redirector.php
index 68b8c4ec8312..56fe8bd9f5a2 100755
--- a/src/Illuminate/Routing/Redirector.php
+++ b/src/Illuminate/Routing/Redirector.php
@@ -48,11 +48,12 @@ public function home($status = 302)
      *
      * @param  int    $status
      * @param  array  $headers
+     * @param  string $fallback
      * @return \Illuminate\Http\RedirectResponse
      */
-    public function back($status = 302, $headers = [])
+    public function back($status = 302, $headers = [], $fallback = false)
     {
-        $back = $this->generator->previous();
+        $back = $this->generator->previous($fallback);
 
         return $this->createRedirect($back, $status, $headers);
     }