diff --git a/libavcodec/flashsv2enc.c b/libavcodec/flashsv2enc.c
index 9a78070304..eedb902ede 100644
--- a/libavcodec/flashsv2enc.c
+++ b/libavcodec/flashsv2enc.c
@@ -903,4 +903,5 @@ AVCodec ff_flashsv2_encoder = {
     flashsv2_encode_end,
     .pix_fmts = (enum PixelFormat[]) {PIX_FMT_BGR24, PIX_FMT_NONE},
     .long_name = NULL_IF_CONFIG_SMALL("Flash Screen Video Version 2"),
+    .capabilities   =  CODEC_CAP_EXPERIMENTAL,
 };