diff --git a/testenv/ChangeLog b/testenv/ChangeLog
index 22b24687..b722b38e 100644
--- a/testenv/ChangeLog
+++ b/testenv/ChangeLog
@@ -1,3 +1,8 @@
+2014-06-22  Darshit Shah  <darnir@gmail.com>
+
+	* (conf.files_crawled): diff is a set object and needs explicit str
+	conversion.
+
 2014-03-13  Zihang Chen  <chsc4698@gmail.com>
 
 	* base_test.py:
diff --git a/testenv/conf/files_crawled.py b/testenv/conf/files_crawled.py
index ad6d0f17..3f52008d 100644
--- a/testenv/conf/files_crawled.py
+++ b/testenv/conf/files_crawled.py
@@ -14,5 +14,5 @@ class FilesCrawled:
             diff = headers.symmetric_difference(remaining)
 
             if diff:
-                print_red(diff)
+                print_red (str(diff))
                 raise TestFailed('Not all files were crawled correctly.')