diff --git a/book/04-git-server/sections/setting-up-server.asc b/book/04-git-server/sections/setting-up-server.asc
index bbb082956..1b53a59ba 100644
--- a/book/04-git-server/sections/setting-up-server.asc
+++ b/book/04-git-server/sections/setting-up-server.asc
@@ -96,7 +96,7 @@ To do so, you must first add the full pathname of the `git-shell` command to `/e
 [source,console]
 ----
 $ cat /etc/shells   # see if git-shell is already in there. If not...
-$ which git-shell   # make sure git-shell is installed on your system.
+$ command -v git-shell   # make sure git-shell is installed on your system.
 $ sudo -e /etc/shells  # and add the path to git-shell from last command
 ----
 
@@ -104,7 +104,7 @@ Now you can edit the shell for a user using `chsh <username> -s <shell>`:
 
 [source,console]
 ----
-$ sudo chsh git -s $(which git-shell)
+$ sudo chsh git -s "$(command -v git-shell)"
 ----
 
 Now, the `git` user can still use the SSH connection to push and pull Git repositories but can't shell onto the machine.