diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c
index fb811bb33e..c8b0daba88 100644
--- a/libavcodec/jpeg2000dec.c
+++ b/libavcodec/jpeg2000dec.c
@@ -1794,6 +1794,7 @@ static void jpeg2000_dec_cleanup(Jpeg2000DecoderContext *s)
     av_freep(&s->tile);
     memset(s->codsty, 0, sizeof(s->codsty));
     memset(s->qntsty, 0, sizeof(s->qntsty));
+    memset(s->properties, 0, sizeof(s->properties));
     memset(&s->poc  , 0, sizeof(s->poc));
     s->numXtiles = s->numYtiles = 0;
 }