diff --git a/src/system_descriptor.jl b/src/system_descriptor.jl
index 70e41a5..e07b286 100644
--- a/src/system_descriptor.jl
+++ b/src/system_descriptor.jl
@@ -3,12 +3,24 @@ struct SystemArgument
     default::Any
     allowed_values::Set{<:Any}
 
-    function SystemArgument(; name, default, allowed_values)
+    function SystemArgument(name, default, allowed_values)
         isempty(allowed_values) && error("allowed_values cannot be empty")
         new(name, default, allowed_values)
     end
 end
 
+function SystemArgument(;
+    name, 
+    default, 
+    allowed_values
+)
+    return SystemArgument(
+        name, 
+        default, 
+        allowed_values
+    )
+end
+
 get_name(arg::SystemArgument) = arg.name
 get_default(arg::SystemArgument) = arg.default
 get_allowed_values(arg::SystemArgument) = arg.allowed_values