diff --git a/libavdevice/alsa-audio-common.c b/libavdevice/alsa-audio-common.c
index 8e3535e21e..bbe2c87720 100644
--- a/libavdevice/alsa-audio-common.c
+++ b/libavdevice/alsa-audio-common.c
@@ -234,7 +234,7 @@ av_cold int ff_alsa_close(AVFormatContext *s1)
 {
     AlsaData *s = s1->priv_data;
 
-    av_freep(s->reorder_buf);
+    av_freep(&s->reorder_buf);
     snd_pcm_close(s->h);
     return 0;
 }