diff --git a/doc/examples/muxing.c b/doc/examples/muxing.c
index e1a4770eb12288b8fafb98dfd5256389693aa2b2..6b98a3b2a0ac1459758ff6a4a85e9c7dd963c8c4 100644
--- a/doc/examples/muxing.c
+++ b/doc/examples/muxing.c
@@ -488,9 +488,9 @@ static AVFrame *get_video_frame(OutputStream *ost)
             }
         }
         fill_yuv_image(ost->tmp_frame, ost->next_pts, c->width, c->height);
-        sws_scale(ost->sws_ctx,
-                  (const uint8_t * const *)ost->tmp_frame->data, ost->tmp_frame->linesize,
-                  0, c->height, ost->frame->data, ost->frame->linesize);
+        sws_scale(ost->sws_ctx, (const uint8_t * const *) ost->tmp_frame->data,
+                  ost->tmp_frame->linesize, 0, c->height, ost->frame->data,
+                  ost->frame->linesize);
     } else {
         fill_yuv_image(ost->frame, ost->next_pts, c->width, c->height);
     }