diff --git a/src/wic/plugins/source/isoimage_isohybrid.py b/src/wic/plugins/source/isoimage_isohybrid.py
index 0a3ecd3..73a3902 100644
--- a/src/wic/plugins/source/isoimage_isohybrid.py
+++ b/src/wic/plugins/source/isoimage_isohybrid.py
@@ -419,7 +419,7 @@ class IsoImagePlugin(SourcePlugin):
 
         mkisofs_cmd = "mkisofs -V %s " % part.label
         mkisofs_cmd += "-o %s -U " % iso_img
-        mkisofs_cmd += "-J -joliet-long -r -iso-level 2 -b %s " % iso_bootimg
+        mkisofs_cmd += "-J -joliet-long -r -iso-level 3 -b %s " % iso_bootimg
         mkisofs_cmd += "-c %s -no-emul-boot -boot-load-size 4 " % iso_bootcat
         mkisofs_cmd += "-boot-info-table -eltorito-alt-boot "
         mkisofs_cmd += "-eltorito-platform 0xEF -eltorito-boot %s " % efi_img