diff --git a/docker/README.md b/docker/README.md
index e5144ac..f0e4c28 100644
--- a/docker/README.md
+++ b/docker/README.md
@@ -6,8 +6,7 @@
 git clone https://github.com/redox-os/redox.git ; cd redox #1
 make pull #2
 docker build -t redox docker/ #3
-docker run --cap-add MKNOD --cap-add SYS_ADMIN --device \
-    /dev/fuse -e LOCAL_USER_ID=`id -u` -v `pwd`:/src --rm redox make all #4
+docker run --cap-add MKNOD --cap-add SYS_ADMIN --device /dev/fuse -e LOCAL_USER_ID="$(id -u)" -v "$(pwd):/src" --rm redox make all #4
 make qemu #5
 ```
 To unpack: