diff --git a/app/codec/ffmpeg/ffmpegencoder.cpp b/app/codec/ffmpeg/ffmpegencoder.cpp
index b99f071c7..86bbf9309 100644
--- a/app/codec/ffmpeg/ffmpegencoder.cpp
+++ b/app/codec/ffmpeg/ffmpegencoder.cpp
@@ -473,9 +473,8 @@ bool FFmpegEncoder::SetupCodecContext(AVStream* stream, AVCodecContext* codec_ct
   if (params().video_threads() == 0) {
     av_dict_set(&codec_opts, "threads", "auto", 0);
   } else {
-    char thread_val[10];
-    sprintf_s(thread_val, 10, "%d", params().video_threads());
-    av_dict_set(&codec_opts, "threads", thread_val, 0);
+    QString thread_val = QString::number(params().video_threads());
+    av_dict_set(&codec_opts, "threads", thread_val.toUtf8(), 0);
   }
 
   // Try to open encoder