diff --git a/src/stream-tcp-util.c b/src/stream-tcp-util.c
index 48a6e090b9..c77173322d 100644
--- a/src/stream-tcp-util.c
+++ b/src/stream-tcp-util.c
@@ -70,6 +70,29 @@ void StreamTcpUTClearStream(TcpStream *s) {
     StreamTcpReturnStreamSegments(s);
 }
 
+int StreamTcpUTAddSegmentWithPayload(ThreadVars *tv, TcpReassemblyThreadCtx *ra_ctx, TcpStream *stream, uint32_t seq, uint8_t *payload, uint16_t len) {
+    TcpSegment *s = StreamTcpGetSegment(tv, ra_ctx, len);
+    if (s == NULL) {
+        return -1;
+    }
+
+    s->seq = seq;
+    s->payload_len = len;
+    memcpy(s->payload, payload, len);
+
+    Packet *p = UTHBuildPacketReal(s->payload, s->payload_len, IPPROTO_TCP, "1.1.1.1", "2.2.2.2", 1024, 80);
+    if (p == NULL) {
+        return -1;
+    }
+    p->tcph->th_seq = htonl(seq);
+
+    if (StreamTcpReassembleInsertSegment(tv, ra_ctx, stream, s, p) < 0)
+        return -1;
+
+    UTHFreePacket(p);
+    return 0;
+}
+
 int StreamTcpUTAddSegmentWithByte(ThreadVars *tv, TcpReassemblyThreadCtx *ra_ctx, TcpStream *stream, uint32_t seq, uint8_t byte, uint16_t len) {
     TcpSegment *s = StreamTcpGetSegment(tv, ra_ctx, len);
     if (s == NULL) {
@@ -80,7 +103,7 @@ int StreamTcpUTAddSegmentWithByte(ThreadVars *tv, TcpReassemblyThreadCtx *ra_ctx
     s->payload_len = len;
     memset(s->payload, byte, len);
 
-    Packet *p = UTHBuildPacketReal(s->payload, 5, IPPROTO_TCP, "1.1.1.1", "2.2.2.2", 1024, 80);
+    Packet *p = UTHBuildPacketReal(s->payload, s->payload_len, IPPROTO_TCP, "1.1.1.1", "2.2.2.2", 1024, 80);
     if (p == NULL) {
         return -1;
     }