diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index 0c30f89602..03ba620940 100644
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@@ -2091,6 +2091,7 @@ av_cold int ff_mjpeg_decode_end(AVCodecContext *avctx)
         av_frame_unref(s->picture_ptr);
 
     av_free(s->buffer);
+    av_freep(&s->stereo3d);
     av_freep(&s->ljpeg_buffer);
     s->ljpeg_buffer_size = 0;