diff --git a/libavcodec/iff.c b/libavcodec/iff.c
index 075ada6ddd..33cf2e3a94 100644
--- a/libavcodec/iff.c
+++ b/libavcodec/iff.c
@@ -1878,6 +1878,7 @@ AVCodec ff_iff_ilbm_decoder = {
     .init           = decode_init,
     .close          = decode_end,
     .decode         = decode_frame,
+    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
     .capabilities   = AV_CODEC_CAP_DR1,
 };
 #endif