diff --git a/.pylintrc b/.pylintrc
index 6c36cf6ea12f..58acd05d34f8 100644
--- a/.pylintrc
+++ b/.pylintrc
@@ -155,6 +155,8 @@ enable=
     W1305, # format-combined-specification
     W1306, # missing-format-attribute
     W1307, # invalid-format-index
+    W1401, # anomalous-backslash-in-string
+    W1402, # anomalous-unicode-escape-in-string
 
 
 [REPORTS]
diff --git a/datumaro/plugins/sampler/sampler.py b/datumaro/plugins/sampler/sampler.py
index 797fd800a549..9672cc7a575b 100644
--- a/datumaro/plugins/sampler/sampler.py
+++ b/datumaro/plugins/sampler/sampler.py
@@ -13,7 +13,7 @@
 
 
 class Sampler(Transform, CliPlugin):
-    """
+    r"""
     Sampler that analyzes model inference results on the dataset |n
     and picks the best sample for training.|n
     |n
diff --git a/datumaro/plugins/transforms.py b/datumaro/plugins/transforms.py
index 7b0ad8b0253c..f1e6e362ea16 100644
--- a/datumaro/plugins/transforms.py
+++ b/datumaro/plugins/transforms.py
@@ -399,7 +399,7 @@ def transform_item(self, item):
             return item
 
 class Rename(ItemTransform, CliPlugin):
-    """
+    r"""
     Renames items in the dataset. Supports regular expressions.
     The first character in the expression is a delimiter for
     the pattern and replacement parts. Replacement part can also
@@ -409,7 +409,7 @@ class Rename(ItemTransform, CliPlugin):
     - Replace 'pattern' with 'replacement':|n
     |s|srename -e '|pattern|replacement|'|n
     - Remove 'frame_' from item ids:|n
-    |s|srename -e '|frame_(\d+)|\\1|'
+    |s|srename -e '|frame_(\d+)|\1|'
     """
 
     @classmethod