diff --git a/CIME/utils.py b/CIME/utils.py
index 5b186cf7085..3f7cfb9f79e 100644
--- a/CIME/utils.py
+++ b/CIME/utils.py
@@ -201,7 +201,7 @@ def check_name(fullname, additional_chars=None, fullpath=False):
     False
     """
 
-    chars = "+*?<>/{}[\]~`@:"  # pylint: disable=anomalous-backslash-in-string
+    chars = r"+*?<>/{}[\]~`@:"
     if additional_chars is not None:
         chars += additional_chars
     if fullname.endswith("/"):