diff --git a/netoik-api.spec b/netoik-api.spec
index 641cf64..0e8e329 100644
--- a/netoik-api.spec
+++ b/netoik-api.spec
@@ -26,19 +26,17 @@ Netoik rest API server
 %make_install
 
 %pre
-useradd --no-create-home --system --user-group %{name}
+id %{name} || useradd --no-create-home --system --user-group %{name}
 
 %post
-systemctl stop %{name}-server.service
 systemctl daemon-reload
-systemctl start %{name}-server.service
+systemctl restart %{name}-server.service
 
 %preun
-systemctl stop %{name}-server.service
+$1 -eq 0 && systemctl stop %{name}-server.service
 
 %postun
-systemctl daemon-reload
-userdel %{name}
+$1 -eq 0 && systemctl daemon-reload && userdel %{name}
 
 %files
 %attr(755, root, root) %dir %{_var}/%{name}