diff --git a/cmd/dkl-local-server/boot-img.go b/cmd/dkl-local-server/boot-img.go
index 7fce2a4..5f54ac3 100644
--- a/cmd/dkl-local-server/boot-img.go
+++ b/cmd/dkl-local-server/boot-img.go
@@ -97,7 +97,7 @@ var grubSupportVersion = flag.String("grub-support", "1.1.0", "GRUB support vers
 
 func setupBootImage(bootImg *os.File, ctx *renderContext, uki bool, cmdline string) (err error) {
 	if uki {
-		err = bootImg.Truncate(128 << 20)
+		err = bootImg.Truncate(192 << 20)
 		if err != nil {
 			return
 		}