diff --git a/cfg_checker/common/other.py b/cfg_checker/common/other.py
index d9e434a..2620d05 100644
--- a/cfg_checker/common/other.py
+++ b/cfg_checker/common/other.py
@@ -38,7 +38,7 @@
             return (True, _message) if message else True
 
         # node role code checks
-        _code = re.findall("[a-zA-Z]+", fqdn.split('.')[0])
+        _code = re.findall(r"[a-zA-Z]+", fqdn.split('.')[0])
         if len(_code) > 0:
             if _code[0] in all_roles_map:
                 return _result()
@@ -70,7 +70,7 @@
     def get_node_code(self, fqdn):
         # validate
         _isvalid, _message = self.validate_name(fqdn, message=True)
-        _code = re.findall("[a-zA-Z]+?(?=(?:[0-9]+$)|$)", fqdn.split('.')[0])
+        _code = re.findall(r"[a-zA-Z]+?(?=(?:[0-9]+$)|$)", fqdn.split('.')[0])
         # check if it is valid and raise if not
         if _isvalid:
             # try to match it with ones in map