1 files changed, 1 insertions, 1 deletions
diff --git a/tests/config/test_generate.py b/tests/config/test_generate.py
index f88d28a19d..0c23068bcf 100644
--- a/tests/config/test_generate.py
+++ b/tests/config/test_generate.py
@@ -67,6 +67,6 @@ class ConfigGenerationTestCase(unittest.TestCase):
         with open(log_config_file) as f:
             config = f.read()
             # find the 'filename' line
-            matches = re.findall("^\s*filename:\s*(.*)$", config, re.M)
+            matches = re.findall(r"^\s*filename:\s*(.*)$", config, re.M)
             self.assertEqual(1, len(matches))
             self.assertEqual(matches[0], expected)