diff --git a/scripts/install b/scripts/install
index 2d31acd..5619bb1 100755
--- a/scripts/install
+++ b/scripts/install
@@ -178,15 +178,20 @@ ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$ap
 #=================================================
 ynh_script_progression --message="Configuring permissions..." --time --weight=1
 
-# Make app public
-# Everyone can access the app.
-# The "main" permission is automatically created before the install script.
-ynh_permission_update --permission="main" --add="visitors"
-
-# all users can access the /admin section, with or without SSO
+# for normal operation of the app, is_public should equal True,
+# and all visitors should be able to access the /admin section, with or without SSO
 # as go-ssb-room has its own authentication and user-system
 # which operates outside of yunohost SSO
 
+# Make app public if necessary
+if [ $is_public -eq 1 ]
+then
+	# Everyone can access the app.
+	# The "main" permission is automatically created before the install script.
+	ynh_permission_update --permission="main" --add="visitors"
+fi
+
+
 #=================================================
 # RELOAD NGINX
 #=================================================