diff --git a/doc/installation.md b/doc/installation.md
index d461121c..3dfedfe1 100644
--- a/doc/installation.md
+++ b/doc/installation.md
@@ -110,7 +110,7 @@ Setup:
     sudo -u git sh -c 'echo -e "PATH=\$PATH:/home/git/bin\nexport PATH" >> /home/git/.profile'
     sudo -u git -H sh -c "PATH=/home/git/bin:$PATH; /home/git/gitolite/src/gl-system-install"
     sudo cp /home/gitlab/.ssh/id_rsa.pub /home/git/gitlab.pub
-    sudo chmod 777 /home/git/gitlab.pub
+    sudo chmod 0444 /home/git/gitlab.pub
 
     sudo -u git -H sed -i 's/0077/0007/g' /home/git/share/gitolite/conf/example.gitolite.rc
     sudo -u git -H sh -c "PATH=/home/git/bin:$PATH; gl-setup -q /home/git/gitlab.pub"