diff --git a/plugins/snmp/snmp__brocade_ifs b/plugins/snmp/snmp__brocade_ifs
index 2b04de29..c0578e3e 100755
--- a/plugins/snmp/snmp__brocade_ifs
+++ b/plugins/snmp/snmp__brocade_ifs
@@ -269,7 +269,7 @@ if 'MUNIN_CAP_MULTIGRAPH' not in os.environ:
 
 # Parse host_name and counter type from arg0
 called_as = os.path.basename(sys.argv[0])
-regex_str = '^snmp_'(.+)'_brocade_ifs'
+regex_str = r'^snmp_(.+)_brocade_ifs'
 match = re.match(regex_str, called_as)
 if match:
     host_name     = match.group(1)