diff --git a/fx.reflection/function.c b/fx.reflection/function.c
index eae7c0c..d907a89 100644
--- a/fx.reflection/function.c
+++ b/fx.reflection/function.c
@@ -75,8 +75,9 @@ static void push_arg(
 	unsigned int param_value_type = __fx_type_get_value_type(param_type);
 	if (param_value_type == __FX_VALUE_TYPE_CSTR
 	    && fx_value_is_type(arg, FX_TYPE_STRING)) {
-		fx_value cstr = FX_CSTR(
-			fx_string_get_cstr(fx_value_get_object_c(arg)));
+		fx_object *obj;
+		fx_value_get_object(arg, &obj);
+		fx_value cstr = FX_CSTR(fx_string_get_cstr(obj));
 		callvm_push(vm, &cstr);
 		return;
 	}
@@ -227,8 +228,7 @@ static void function_fini(fx_object *obj, void *priv)
 	}
 }
 
-/*** CLASS DEFINITION
- * *********************************************************/
+/*** CLASS DEFINITION *********************************************************/
 
 FX_TYPE_CLASS_BEGIN(fx_function)
 	FX_TYPE_VTABLE_INTERFACE_BEGIN(fx_object, FX_TYPE_OBJECT)