From d731652a229e75714201fe42fdf3cbaa04387607 Mon Sep 17 00:00:00 2001
From: Dain Liffman <dainliff@au1.ibm.com>
Date: Wed, 31 May 2017 10:09:42 +0800
Subject: [PATCH] Fix for #533

---
 pre_commit/commands/run.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pre_commit/commands/run.py b/pre_commit/commands/run.py
index 3039b662..9ce71d8d 100644
--- a/pre_commit/commands/run.py
+++ b/pre_commit/commands/run.py
@@ -57,7 +57,7 @@ NO_FILES = '(no files to check)'
 
 
 def _run_single_hook(hook, repo, args, skips, cols):
-    filenames = get_filenames(args, hook['files'], hook['exclude'])
+    filenames = get_filenames(args, hook.get('files', ''), hook['exclude'])
     if hook['id'] in skips:
         output.write(get_hook_message(
             _hook_msg_start(hook, args.verbose),