diff --git a/modules/highgui/src/cap_ffmpeg_impl.hpp b/modules/highgui/src/cap_ffmpeg_impl.hpp
index ae5c382f3..7289df95c 100644
--- a/modules/highgui/src/cap_ffmpeg_impl.hpp
+++ b/modules/highgui/src/cap_ffmpeg_impl.hpp
@@ -1070,7 +1070,7 @@ static AVStream *icv_add_video_stream_FFMPEG(AVFormatContext *oc,
         frame_rate_base = 1;
         while (fabs(static_cast<double>(frame_rate)/frame_rate_base) - fps > 0.001){
                 frame_rate_base *= 10;
-		frame_rate=(int)(fps*frame_rate_base + 0.5);
+                frame_rate = static_cast<int>(fps*frame_rate_base + 0.5);
 	}
 #if LIBAVFORMAT_BUILD > 4752
     c->time_base.den = frame_rate;