diff --git a/rosbridge_library/src/rosbridge_library/internal/message_conversion.py b/rosbridge_library/src/rosbridge_library/internal/message_conversion.py
index 9e2025667..a0d833ce2 100644
--- a/rosbridge_library/src/rosbridge_library/internal/message_conversion.py
+++ b/rosbridge_library/src/rosbridge_library/internal/message_conversion.py
@@ -91,7 +91,7 @@
 ros_header_types = ["Header", "std_msgs/Header", "roslib/Header"]
 ros_binary_types = ["uint8[]", "char[]", "sequence<uint8>", "sequence<char>"]
 # Remove the list type wrapper, and length specifier, from rostypes i.e. sequence<double, 3>
-list_tokens = re.compile("<(.+?)(, \d+)?>")
+list_tokens = re.compile(r"<(.+?)(, \d+)?>")
 bounded_array_tokens = re.compile(r"(.+)\[.*\]")
 ros_binary_types_list_braces = [
     ("uint8[]", re.compile(r"uint8\[[^\]]*\]")),