diff --git a/MagickCore/image.c b/MagickCore/image.c
index f926196..1f8610c 100644
--- a/MagickCore/image.c
+++ b/MagickCore/image.c
@@ -805,6 +805,7 @@
   clone_image->magick_columns=image->magick_columns;
   clone_image->magick_rows=image->magick_rows;
   clone_image->type=image->type;
+  clone_image->sync=image->sync;
   clone_image->map=image->map;
   clone_image->channel_map=ClonePixelChannelMap(image->channel_map);
   (void) CopyMagickString(clone_image->magick_filename,image->magick_filename,