diff --git a/README.md b/README.md
index a5c83e3..2059a57 100644
--- a/README.md
+++ b/README.md
@@ -85,5 +85,5 @@ sudo cp -a src/isnd/bin/Release/net7.0/publish/* /srv/www/isnd
 sudo systemctl start isnd
 # MAJ du client
 sudo cp -a src/isn/bin/Release/net7.0/* /usr/local/lib/isn
-sudo chown -R root.root /usr/local/lib/isn
+sudo chown -R root:root /usr/local/lib/isn
 ````