diff --git a/regipy/plugins/ntuser/shellbags_ntuser.py b/regipy/plugins/ntuser/shellbags_ntuser.py
index 8fb02c7..42101dc 100644
--- a/regipy/plugins/ntuser/shellbags_ntuser.py
+++ b/regipy/plugins/ntuser/shellbags_ntuser.py
@@ -219,7 +219,7 @@ def iter_sk(self, key, reg_path, codepage=DEFAULT_CODEPAGE, base_path='', path='
             node_slot = ''
 
         for v in key.iter_values(trim_values=False):
-            if re.match("\d+", v.name):
+            if re.match(r"\d+", v.name):
                 slot = v.name
                 byte_stream = v.value
                 shell_items = pyfwsi.item_list()
diff --git a/regipy/plugins/usrclass/shellbags_usrclass.py b/regipy/plugins/usrclass/shellbags_usrclass.py
index b49bd24..fb0134f 100644
--- a/regipy/plugins/usrclass/shellbags_usrclass.py
+++ b/regipy/plugins/usrclass/shellbags_usrclass.py
@@ -223,7 +223,7 @@ def iter_sk(self, key, reg_path, codepage=DEFAULT_CODEPAGE, base_path='', path='
             node_slot = ''
 
         for v in key.iter_values(trim_values=False):
-            if re.match("\d+", v.name):
+            if re.match(r"\d+", v.name):
                 slot = v.name
                 byte_stream = v.value
                 shell_items = pyfwsi.item_list()