diff --git a/scripts/install b/scripts/install
index 6947e59..ffb1e8e 100755
--- a/scripts/install
+++ b/scripts/install
@@ -391,11 +391,13 @@ ynh_script_progression --message="Starting a systemd service..." --time --weight
 
 # Start a systemd service
 ynh_systemd_action --service_name=$app --action="start"
+# Wait until the synapse user is created
+sleep 30
     # (Note that, by default, non-admins might not have your homeserver's permission to create communities.)
     if [ "$bot_is_synapse_admin" = "Yes" ]
     then
-    ynh_psql_execute_as_root --database=$synapse_db_name --sql="UPDATE users SET admin = 1 WHERE name = '@$whatsappbot:$server_name';"
-#    yunohost app action run $synapse_instance set_admin_user -a username=$whatsappbot
+#    ynh_psql_execute_as_root --database=$synapse_db_name --sql="UPDATE users SET admin = 1 WHERE name = '@$whatsappbot:$server_name';"
+    yunohost app action run $synapse_instance set_admin_user -a username=$whatsappbot
     fi
 ynh_systemd_action --service_name=$app --action="restart"