diff --git a/lib/nodes/uldaq.c b/lib/nodes/uldaq.c
index 32a6a8eb1..e60b850f8 100644
--- a/lib/nodes/uldaq.c
+++ b/lib/nodes/uldaq.c
@@ -477,8 +477,12 @@ int uldaq_read(struct node *n, struct sample *smps[], unsigned cnt, unsigned *re
 		smp->signals = &n->signals;
 		smp->sequence = start_index / u->in.channel_count;
 		smp->flags = SAMPLE_HAS_SEQUENCE | SAMPLE_HAS_DATA;
+
+		debug(2, "sequence no: %zu", smp->sequence);
 	}
 
+	debug(2, "cnt: %u", cnt);
+
 	pthread_mutex_unlock(&u->in.mutex);
 
 	return cnt;