diff --git a/spa/plugins/avb/avb-pcm.c b/spa/plugins/avb/avb-pcm.c
index e1f2b0a8c..d15669e3f 100644
--- a/spa/plugins/avb/avb-pcm.c
+++ b/spa/plugins/avb/avb-pcm.c
@@ -416,6 +416,8 @@ int spa_avb_init(struct state *state, const struct spa_dict *info)
 
 int spa_avb_clear(struct state *state)
 {
+	free(state->ringbuffer_data);
+	state->ringbuffer_data = NULL;
 	return 0;
 }