diff --git a/bpf/flow.h b/bpf/flow.h
index a5629d4dd69e24fe17a80b2620d2d0744625823e..14d1be54c97485b550a9e945a5bab9553a57b78f 100644
--- a/bpf/flow.h
+++ b/bpf/flow.h
@@ -52,6 +52,7 @@ typedef struct flow_record_t {
     flow_metrics metrics;
 } __attribute__((packed)) flow_record;
 
+// Payload Meta is a tuple containing information about the payload
 typedef struct payload_meta_t {
 	u32 if_index;
 	u32 pkt_len;