diff --git a/src/npf/dpi/dpi.c b/src/npf/dpi/dpi.c
index cd97de9b..f1a61684 100644
--- a/src/npf/dpi/dpi.c
+++ b/src/npf/dpi/dpi.c
@@ -363,7 +363,7 @@ dpi_session_first_packet(struct npf_session *se, struct npf_cache *npc,
 
 free_flows:
 	for (unsigned int j = 0; j < i; j++) {
-		struct flow_procs_tup *tup = &flow->flows[i];
+		struct flow_procs_tup *tup = &flow->flows[j];
 		if (!tup)
 			continue;
 		if (!tup->procs)