diff --git a/security/etpro-telemetry/src/opnsense/scripts/etpro_telemetry/telemetry/log.py b/security/etpro-telemetry/src/opnsense/scripts/etpro_telemetry/telemetry/log.py
index 67fa20592..2afb91cf6 100755
--- a/security/etpro-telemetry/src/opnsense/scripts/etpro_telemetry/telemetry/log.py
+++ b/security/etpro-telemetry/src/opnsense/scripts/etpro_telemetry/telemetry/log.py
@@ -77,7 +77,7 @@ def parse_log_line(line):
     if 'timestamp' in record:
         # convert timestamp
         try:
-            tmp = list(map(lambda x: int(x), re.split('T|-|\:|\.|\+', record['timestamp'])))
+            tmp = [int(x) for x in re.split('T|-|\\:|\\.|\\+', record['timestamp'])]
             tz = record['timestamp'][-5:]
             ts = datetime.datetime(*tmp[:7])
             ts -= datetime.timedelta(hours=int(tz[2:3]), minutes=int(tz[-2:])) * int(tz[0:1] + '1')