diff --git a/pagure/ui/filters.py b/pagure/ui/filters.py
index 45f32f6..478e080 100644
--- a/pagure/ui/filters.py
+++ b/pagure/ui/filters.py
@@ -268,6 +268,8 @@ def blame_loc(loc, repo, username, blame):
     ]
 
     for idx, line in enumerate(loc.split('\n')):
+        line = line.decode('utf-8')
+
         if line == '</pre></div>':
             break
 
diff --git a/tests/test_pagure_flask_ui_repo.py b/tests/test_pagure_flask_ui_repo.py
index edc5322..1079b22 100644
--- a/tests/test_pagure_flask_ui_repo.py
+++ b/tests/test_pagure_flask_ui_repo.py
@@ -1701,6 +1701,9 @@ class PagureFlaskRepotests(tests.Modeltests):
         tests.add_commit_git_repo(
             os.path.join(self.path, 'forks', 'pingou', 'test3.git'),
             ncommits=10)
+        tests.add_content_to_git(
+            os.path.join(self.path, 'forks', 'pingou', 'test3.git'),
+            content='foö\bbáßðáz')
 
         output = self.app.get('/fork/pingou/test3/blame/sources')
         self.assertEqual(output.status_code, 200)