diff --git a/view/tree2/to/dts/dts.ts b/view/tree2/to/dts/dts.ts
index c3244d894d7..08a539ea860 100644
--- a/view/tree2/to/dts/dts.ts
+++ b/view/tree2/to/dts/dts.ts
@@ -113,9 +113,9 @@ namespace $ {
 							]
 
 							if( input.type[0] === '/' ) return [
-								input.data('readonly '),
+								input.data('readonly ('),
 								input.type.trim().length > 1 ? input.data( input.type.slice(1) ) : input.data('any'),
-								input.data('[]'),
+								input.data(')[]'),
 							]
 
 							if( input.type && (input.type.match(/[\+\-]*NaN/) || !Number.isNaN( Number( input.type ) ) ) ) return [
diff --git a/view/tree2/to/js/test/ex/array_channel_with_types.view.tree b/view/tree2/to/js/test/ex/array_channel_with_types.view.tree
index 2e5f390be4c..6f53bec5a01 100644
--- a/view/tree2/to/js/test/ex/array_channel_with_types.view.tree
+++ b/view/tree2/to/js/test/ex/array_channel_with_types.view.tree
@@ -1,2 +1,2 @@
 $mol_view_tree2_to_js_test_ex_array_channel_with_types_foo $mol_view
-	arr /(readonly(number)[])
+	arr /readonly(number)[]
diff --git a/view/tree2/to/js/test/js.array.test.ts b/view/tree2/to/js/test/js.array.test.ts
index 749eccc7f86..ae91680dfc2 100644
--- a/view/tree2/to/js/test/js.array.test.ts
+++ b/view/tree2/to/js/test/js.array.test.ts
@@ -29,8 +29,9 @@ namespace $ {
 		
 		'Array channel with types'( $ ) {
 			const _foo = $mol_view_tree2_to_js_test_ex_array_channel_with_types_foo
-
-			$mol_assert_like(_foo.make({ $ }).arr(), [])
+			const foo = _foo.make({ $ })
+			type assert_arr = $mol_type_assert<ReturnType<typeof foo['arr']>, readonly( readonly(number)[] )[]>
+			$mol_assert_like(foo.arr(), [])
 
 		},