diff --git a/tools/fastdds/shm/clean.py b/tools/fastdds/shm/clean.py
index 15aef206004..c286ad6d8b8 100644
--- a/tools/fastdds/shm/clean.py
+++ b/tools/fastdds/shm/clean.py
@@ -179,7 +179,7 @@ def __clean_zombie_datasharing_segments(self):
             the deleted file names
 
         """
-        segment_lock_re = re.compile('fast_datasharing_([0-9a-f\.]){35}_([\d\.]{7})')
+        segment_lock_re = re.compile(r'fast_datasharing_([0-9a-f\.]){35}_([\d\.]{7})')
         segments_locks = [
             file_name for file_name in self.__list_dir() if segment_lock_re.match(
                 file_name)]