diff --git a/libavcodec/flashsvenc.c b/libavcodec/flashsvenc.c
index 971ce1be82..1c87ae3b23 100644
--- a/libavcodec/flashsvenc.c
+++ b/libavcodec/flashsvenc.c
@@ -275,7 +275,7 @@ static int flashsv_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
         avctx->coded_frame->key_frame = 0;
     }
 
-    if (avctx->coded_frame->key_frame)
+    if (I_frame)
         pkt->flags |= AV_PKT_FLAG_KEY;
     *got_packet = 1;