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-rw-r--r--lib/gitlab/diff/highlight.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/gitlab/diff/highlight.rb b/lib/gitlab/diff/highlight.rb
index 1f012043e56..a605ddb5c33 100644
--- a/lib/gitlab/diff/highlight.rb
+++ b/lib/gitlab/diff/highlight.rb
@@ -24,7 +24,7 @@ module Gitlab
# ignore highlighting for "match" lines
next diff_line if diff_line.meta?
- rich_line = highlight_line(diff_line) || diff_line.text
+ rich_line = highlight_line(diff_line) || ERB::Util.html_escape(diff_line.text)
if line_inline_diffs = inline_diffs[i]
begin