diff --git a/include/call.h b/include/call.h
index c38968e45..6aa0a2639 100644
--- a/include/call.h
+++ b/include/call.h
@@ -464,8 +464,8 @@ struct packet_stream {
 };
 
 INLINE int64_t packet_stream_last_packet(const struct packet_stream *ps) {
-	uint64_t lp1 = atomic64_get_na(&ps->last_packet_us);
-	uint64_t lp2 = atomic64_get_na(&ps->stats_in->last_packet_us);
+	int64_t lp1 = (int64_t)atomic64_get_na(&ps->last_packet_us);
+	int64_t lp2 = (int64_t)atomic64_get_na(&ps->stats_in->last_packet_us);
 	return MAX(lp1, lp2);
 }