diff --git a/resource/acl/server.lua b/resource/acl/server.lua
index 9d65908..6bef3e2 100644
--- a/resource/acl/server.lua
+++ b/resource/acl/server.lua
@@ -2,19 +2,38 @@ local function allowAce(allow)
 	return allow == false and 'deny' or 'allow'
 end
 
+-- Adds the ace to the principal.
 function lib.addAce(principal, ace, allow)
+	if type(principal) == 'number' then
+		principal = 'player.'..principal
+	end
+
 	ExecuteCommand(('add_ace %s %s %s'):format(principal, ace, allowAce(allow)))
 end
 
+-- Removes the ace from the principal.
 function lib.removeAce(principal, ace, allow)
+	if type(principal) == 'number' then
+		principal = 'player.'..principal
+	end
+
 	ExecuteCommand(('remove_ace %s %s %s'):format(principal, ace, allowAce(allow)))
 end
 
+-- Adds the child principal to the parent principal.
 function lib.addPrincipal(child, parent)
+	if type(child) == 'number' then
+		child = 'player.'..child
+	end
+
 	ExecuteCommand(('add_principal %s %s'):format(child, parent))
 end
 
-
+-- Removes the child principal from the parent principal.
 function lib.removePrincipal(child, parent)
+	if type(child) == 'number' then
+		child = 'player.'..child
+	end
+
 	ExecuteCommand(('remove_principal %s %s'):format(child, parent))
 end