diff --git a/simplexalerts/index.md b/simplexalerts/index.md
index bd48acf..1f57ff5 100644
--- a/simplexalerts/index.md
+++ b/simplexalerts/index.md
@@ -376,8 +376,8 @@ To turn the simplex-chat and the alerter into systemd services, you only need to
 ## Enable the services
 Now enable the services
     
-    systemctl enable simplex-chat.service
-    systemctl enable alerter.service
+    sudo systemctl enable simplex-chat.service
+    sudo systemctl enable alerter.service
 
 
 # Conclusion