diff --git a/app/views/refs/blame.html.haml b/app/views/refs/blame.html.haml
index 7307d557a304dc846ea66ab02166a5d6eae4df69..497a2e397199c61ed2957a82a6356f218dbe8a5c 100644
--- a/app/views/refs/blame.html.haml
+++ b/app/views/refs/blame.html.haml
@@ -37,8 +37,7 @@
%td.lines
= preserve do
%pre
- - lines.each do |line|
- = line
+ = Gitlab::Encode.utf8 lines.join("\n")
:javascript
$(function(){