diff --git a/tests/gold_tests/remap_yaml/regex_map_yaml.test.py b/tests/gold_tests/remap_yaml/regex_map_yaml.test.py
index 1565337b1d3..abecde2ee3d 100644
--- a/tests/gold_tests/remap_yaml/regex_map_yaml.test.py
+++ b/tests/gold_tests/remap_yaml/regex_map_yaml.test.py
@@ -41,7 +41,7 @@
     })
 
 ts.Disk.remap_yaml.AddLines(
-    f'''
+    rf'''
 remap:
   - type: regex_map
     from: