diff --git a/lang/codegen/lambda.c b/lang/codegen/lambda.c
index e8f30b2..880ef10 100644
--- a/lang/codegen/lambda.c
+++ b/lang/codegen/lambda.c
@@ -77,7 +77,7 @@ static struct code_generator_result gen_lambda(
 		= mie_builder_get_data_ptr(gen->c_builder, "Lambda");
 	struct mie_value *sel = mie_ctx_get_selector(gen->c_ctx, "_M3new4funcE");
 	struct mie_value *func_value = mie_builder_load(
-		gen->c_builder, id, MIE_VALUE(lambda->s_func), NULL);
+		gen->c_builder, func_type, MIE_VALUE(lambda->s_func), NULL);
 	struct mie_value *args[] = {
 		func_value,
 	};