diff --git a/src/sniffer.c b/src/sniffer.c
index 36b6424bd..2336f0bdc 100644
--- a/src/sniffer.c
+++ b/src/sniffer.c
@@ -4647,7 +4647,7 @@ static int AdjustSequence(TcpInfo* tcpInfo, SnifferSession* session,
 
     /* handle rollover of sequence */
     if (tcpInfo->sequence < seqStart)
-        real = 0xffffffffU - seqStart + tcpInfo->sequence;
+        real = 0xffffffffU - seqStart + tcpInfo->sequence + 1;
 
     TraceRelativeSequence(*expected, real);