diff --git a/source/blender/blenkernel/intern/writeffmpeg.c b/source/blender/blenkernel/intern/writeffmpeg.c
index bae4d9c4b4e..c4c3eb4a8b2 100644
--- a/source/blender/blenkernel/intern/writeffmpeg.c
+++ b/source/blender/blenkernel/intern/writeffmpeg.c
@@ -1244,7 +1244,7 @@ static void ffmpeg_set_expert_options(RenderData *rd)
 		 * The other options were taken from the libx264-default.preset
 		 * included in the ffmpeg distribution.
 		 */
-		ffmpeg_property_add_string(rd, "video", "flags:loop");
+//		ffmpeg_property_add_string(rd, "video", "flags:loop"); // this breakes compatibility for QT
 		ffmpeg_property_add_string(rd, "video", "cmp:chroma");
 		ffmpeg_property_add_string(rd, "video", "partitions:parti4x4");
 		ffmpeg_property_add_string(rd, "video", "partitions:partp8x8");