diff --git a/LCS/Messaging/python/messaging/messagebus.py b/LCS/Messaging/python/messaging/messagebus.py
index c4d6afd0d21b0ec654439fe18319780d450f7a8f..b54b7f8c2c2d84e60a5b3a28a3492e5f1164a00b 100644
--- a/LCS/Messaging/python/messaging/messagebus.py
+++ b/LCS/Messaging/python/messaging/messagebus.py
@@ -1076,8 +1076,8 @@ class AbstractMessageHandler:
         """
 
         # introspection magic to get all methods called from within this handler's handle_message method.
-        r1 = re.compile("self\.on(.)+\(.*\)")
-        r2 = re.compile("\(.*")
+        r1 = re.compile(r"self\.on(.)+\(.*\)")
+        r2 = re.compile(r"\(.*")
         called_template_methods_from_handle_message = set([r2.sub("", l.strip().replace("self.","")) for l in inspect.getsource(self.handle_message).split('\n') if r1.search(l)])
 
         for method_name, member_func in inspect.getmembers(self, inspect.ismethod):