diff --git a/prereqs.mk b/prereqs.mk
index 1b82fac..fb1488f 100644
--- a/prereqs.mk
+++ b/prereqs.mk
@@ -37,6 +37,7 @@
 	device-tree-compiler \
 	dh-python \
 	fakeroot \
+	gdisk \
 	genext2fs \
 	git \
 	gnome-pkg-tools \