diff --git a/book/installation.rst b/book/installation.rst
index 9ea45d139b0..009cdad8a12 100644
--- a/book/installation.rst
+++ b/book/installation.rst
@@ -252,8 +252,8 @@ If there are any issues, correct them now before moving on.
     .. code-block:: bash
 
 		$ APACHEUSER=`ps aux | grep -E '[a]pache|[h]ttpd' | grep -v root | head -1 | cut -d\  -f1`
-		$ sudo setfacl -R -m u:$APACHEUSER:rwX -m u:`whoami`:rwX app/cache app/logs
-		$ sudo setfacl -dR -m u:$APACHEUSER:rwX -m u:`whoami`:rwX app/cache app/logs
+		$ sudo setfacl -R -m u:"$APACHEUSER":rwX -m u:`whoami`:rwX app/cache app/logs
+		$ sudo setfacl -dR -m u:"$APACHEUSER":rwX -m u:`whoami`:rwX app/cache app/logs
 		
     **3. Without using ACL**