diff --git a/src/opnsense/scripts/netflow/lib/flowparser.py b/src/opnsense/scripts/netflow/lib/flowparser.py
index 008747744..1cc5da113 100755
--- a/src/opnsense/scripts/netflow/lib/flowparser.py
+++ b/src/opnsense/scripts/netflow/lib/flowparser.py
@@ -191,5 +191,8 @@ class FlowParser:
                 record['flow_end'] = record['recv_sec'] - (record['sys_uptime_ms'] - record['flow_finish']) / 1000.0
                 record['duration_ms'] = (record['flow_finish'] - record['flow_start'])
                 record['flow_start'] = record['flow_end'] - record['duration_ms'] / 1000.0
+                if 'packets' not in record or 'octets' not in record:
+                    # this can't be useful data, skip record
+                    continue
 
                 yield record