diff --git a/CHANGELOG b/CHANGELOG
index bc9bb7747a4..7643193451d 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -8,6 +8,7 @@ v 8.10.0 (unreleased)
   - Wrap code blocks on Activies and Todos page. !4783 (winniehell)
   - Align flash messages with left side of page content !4959 (winniehell)
   - Display last commit of deleted branch in push events !4699 (winniehell)
+  - Escape file extension when parsing search results !5141 (winniehell)
   - Apply the trusted_proxies config to the rack request object for use with rack_attack
   - Add Sidekiq queue duration to transaction metrics.
   - Add a new column `artifacts_size` to table `ci_builds` !4964
diff --git a/app/models/repository.rb b/app/models/repository.rb
index 078ca8f4e13..d232d422195 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -911,7 +911,7 @@ class Repository
       if line =~ /^.*:.*:\d+:/
         ref, filename, startline = line.split(':')
         startline = startline.to_i - index
-        extname = File.extname(filename)
+        extname = Regexp.escape(File.extname(filename))
         basename = filename.sub(/#{extname}$/, '')
         break
       end