diff --git a/libavcodec/encode.c b/libavcodec/encode.c
index 6ae47b736c..e7ae2cd4c1 100644
--- a/libavcodec/encode.c
+++ b/libavcodec/encode.c
@@ -589,7 +589,7 @@ int ff_encode_preinit(AVCodecContext *avctx)
     if (avctx->codec_descriptor->props & AV_CODEC_PROP_INTRA_ONLY)
         avctx->internal->intra_only_flag = AV_PKT_FLAG_KEY;
 
-    if (ffcodec(avctx->codec)->cb.encode) {
+    if (ffcodec(avctx->codec)->cb_type == FF_CODEC_CB_TYPE_ENCODE) {
         avci->in_frame = av_frame_alloc();
         if (!avci->in_frame)
             return AVERROR(ENOMEM);