diff --git a/tool/boot/README b/tool/boot/README
index 742da1a1d..fba34b34b 100644
--- a/tool/boot/README
+++ b/tool/boot/README
@@ -28,3 +28,12 @@ code respectively the download source of binaries are described below.
   of the modified Grub 0.97 were obtained from
   http://os.inf.tu-dresden.de/~adam/grub.
 
+:'unzip'
+
+  The 'unzip' tool is part of the 'morbo' toolchain available under GPL.
+  The toolchain was obtained from https://github.com/TUD-OS/morbo.
+  For Genode the unzip was modified so that raw binary images with a Multiboot
+  OS header can be loaded.
+  The changes are available on the genode_bender branch of
+  https://github.com/skalk/morbo.git.
+
diff --git a/tool/boot/unzip b/tool/boot/unzip
new file mode 100755
index 000000000..000924b82
Binary files /dev/null and b/tool/boot/unzip differ
diff --git a/tool/run/load/tftp b/tool/run/load/tftp
index dfe224814..2fb54cf26 100644
--- a/tool/run/load/tftp
+++ b/tool/run/load/tftp
@@ -38,6 +38,8 @@ proc install_pxe_bootloader_to_run_dir { } {
 	exec chmod a+r [run_dir]/boot/pulsar
 	exec cp [genode_dir]/tool/boot/bender [run_dir]/boot/bender
 	exec chmod a+r [run_dir]/boot/bender
+	exec cp [genode_dir]/tool/boot/unzip [run_dir]/boot/unzip
+	exec chmod a+r [run_dir]/boot/unzip
 }