diff --git a/libavcodec/libopenjpegdec.c b/libavcodec/libopenjpegdec.c
index b4ce834778..f09f4ba50b 100644
--- a/libavcodec/libopenjpegdec.c
+++ b/libavcodec/libopenjpegdec.c
@@ -546,6 +546,8 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
     }
 
     *got_frame = 1;
+    picture->pict_type = AV_PICTURE_TYPE_I;
+    picture->key_frame = 1;
     ret        = buf_size;
 
 done: