diff --git a/fftools/textformat/tw_avio.c b/fftools/textformat/tw_avio.c
index 77f8521235..f9fea24b19 100644
--- a/fftools/textformat/tw_avio.c
+++ b/fftools/textformat/tw_avio.c
@@ -41,7 +41,6 @@ static av_cold void iowriter_uninit(AVTextWriterContext *wctx)
     IOWriterContext *ctx = wctx->priv;
 
     if (ctx->close_on_uninit && ctx->avio_context) {
-        avio_flush(ctx->avio_context);
         avio_close(ctx->avio_context);
     }
 }