diff --git a/Documentation/INSTALL.md b/Documentation/INSTALL.md
index 6232b6a4eba..c33966928d3 100644
--- a/Documentation/INSTALL.md
+++ b/Documentation/INSTALL.md
@@ -17,7 +17,7 @@ At present there is no real GPU support so don't expect OpenGL, Vulkan nor accel
 
 ## Creating a Serenity GRUB disk image
 
-Before creating a Serenity disk image, you need to build the OS as described in the [SerenityOS build instructions](https://github.com/SerenityOS/serenity/blob/master/Documentation/BuildInstructions.md). Follow those instructions up to and including running **make install**. After the OS has built, run **sudo make grub-image** to create a new file called **grub_disk_image** that has GRUB2 installed that can be booted on a real PC.
+Before creating a Serenity disk image, you need to build the OS as described in the [SerenityOS build instructions](https://github.com/SerenityOS/serenity/blob/master/Documentation/BuildInstructions.md). Follow those instructions up to and including running **make install**. After the OS has built, run **make grub-image** to create a new file called **grub_disk_image** that has GRUB2 installed that can be booted on a real PC.
 
 The final step is copying **grub_disk_image** onto the disk you wish to boot Serenity off using a command such as:
 
diff --git a/Meta/build-image-grub.sh b/Meta/build-image-grub.sh
index 019761dd9dc..6c1a428d248 100755
--- a/Meta/build-image-grub.sh
+++ b/Meta/build-image-grub.sh
@@ -8,7 +8,7 @@ die() {
 }
 
 if [ "$(id -u)" != 0 ]; then
-    die "this script needs to run as root"
+    exec sudo -E -- "$0" "$@" || die "this script needs to run as root"
 fi
 
 grub=$(command -v grub-install 2>/dev/null) || true