diff --git a/sound/core/seq/seq_memory.c b/sound/core/seq/seq_memory.c
index aaf808316c30..ca9f6db0022c 100644
--- a/sound/core/seq/seq_memory.c
+++ b/sound/core/seq/seq_memory.c
@@ -211,7 +211,7 @@ int snd_seq_expand_var_event_at(const struct snd_seq_event *event, int count,
 	len -= offset;
 	if (len > count)
 		len = count;
-	err = expand_var_event(event, offset, count, buf, true);
+	err = expand_var_event(event, offset, len, buf, true);
 	if (err < 0)
 		return err;
 	return len;