diff --git a/source/test/fixtures/expect-error/generics/index.d.ts b/source/test/fixtures/expect-error/generics/index.d.ts
index 487b40ec..20d6a304 100644
--- a/source/test/fixtures/expect-error/generics/index.d.ts
+++ b/source/test/fixtures/expect-error/generics/index.d.ts
@@ -6,3 +6,5 @@ export default one;
 
 export function two<T1>(foo: T1): T1;
 export function two<T1, T2, T3 extends T2>(foo: T1, bar: T2): T3;
+
+export const inferrable: <T = 'SomeDefaultValue'>() => T;
diff --git a/source/test/fixtures/expect-error/generics/index.test-d.ts b/source/test/fixtures/expect-error/generics/index.test-d.ts
index 284689dc..d4f1609e 100644
--- a/source/test/fixtures/expect-error/generics/index.test-d.ts
+++ b/source/test/fixtures/expect-error/generics/index.test-d.ts
@@ -1,8 +1,12 @@
-import {expectError} from '../../../..';
-import one, {two} from '.';
+import {expectError, expectType} from '../../../..';
+import one, {two, inferrable} from '.';
 
 expectError(one(true, true));
 
 expectError(one<number>(1, 2));
 
 expectError(two<number, string>(1, 'bar'));
+
+// expectError(expectType<number>(inferrable<true>()));
+
+// expectError(expectType<number>(inferrable()));