diff --git a/daemon/codec.c b/daemon/codec.c
index df37de600..fdbc3f491 100644
--- a/daemon/codec.c
+++ b/daemon/codec.c
@@ -2292,8 +2292,7 @@ static int __handler_func_sequencer(struct media_packet *mp, struct transcode_pa
 			if (ts_diff == 0 || ts_diff >= 0x80000000)
 				break;
 
-			unsigned long long ts_diff_us =
-				(unsigned long long) ts_diff * 1000000 / h->dest_pt.clock_rate;
+			unsigned long long ts_diff_us = ts_diff * 1000000LL / h->source_pt.clock_rate;
 			if (ts_diff_us >= 60000)  { // arbitrary value
 				packet = packet_sequencer_force_next_packet(seq);
 				if (!packet)