diff --git a/scripts/install b/scripts/install
index f0721c9..5b707d3 100644
--- a/scripts/install
+++ b/scripts/install
@@ -181,9 +181,9 @@ fi
 
 # We don't test that in CI
 if ! [ ${PACKAGE_CHECK_EXEC:-0} -eq 1 ]; then
-	ynh_permission_url --permission="main" --add_url=$sandboxdomain --auth_header=true
-	# there is a but in core that add a slash at the end of domain in ssowat conf for uris var
-	#ynh_write_var_in_file --file="/etc/sso/conf.json" --key=KEY --value=$sandboxdomain
+	ynh_permission_url --permission="main" --add_url=${sandboxdomain%/} --auth_header=true
+	# there is a bug in core that add a slash at the end of domain in ssowat conf for uris var
+	# so we use ${sandboxdomain%/} to remove the eccessive trailing slash
 fi
 
 #=================================================