diff --git a/type/optional.go b/type/optional.go
index 19e17b4..b801739 100644
--- a/type/optional.go
+++ b/type/optional.go
@@ -50,16 +50,14 @@ func (opt *Optional[T]) HasValue() bool {
 }
 
 // UNWRAPPABLE INTERFACE BEGIN
-func (opt *Optional[T]) Expect(msg string) T {
-	Assert.NotNil(opt)
+func (opt Optional[T]) Expect(msg string) T {
 	if opt.present {
 		return opt.value
 	}
 	panic(msg)
 }
 
-func (opt *Optional[T]) Unwrap() T {
-	Assert.NotNil(opt)
+func (opt Optional[T]) Unwrap() T {
 	if opt.present {
 		return opt.value
 	}
diff --git a/type/result.go b/type/result.go
index 9402769..edd8227 100644
--- a/type/result.go
+++ b/type/result.go
@@ -49,16 +49,14 @@ func (res *Result[T]) HasValue() bool {
 }
 
 // UNWRAPPABLE INTERFACE
-func (res *Result[T]) Expect(msg string) T {
-	Assert.NotNil(res)
+func (res Result[T]) Expect(msg string) T {
 	if res.err == nil {
 		return res.value
 	}
 	panic(msg)
 }
 
-func (res *Result[T]) Unwrap() T {
-	Assert.NotNil(res)
+func (res Result[T]) Unwrap() T {
 	if res.err == nil {
 		return res.value
 	}