diff --git a/gigaparsec.go b/gigaparsec.go
index 5eeefb5..0f286e9 100644
--- a/gigaparsec.go
+++ b/gigaparsec.go
@@ -136,7 +136,7 @@ func Satisfy[T any](pred func(T) bool) Parser[T, T] {
 
 func Slice[T comparable](s []T) Parser[T, []T] {
 	expected := fmt.Sprint(s)
-	return func(state State[T]) (reply Result[T, []T], err error) {
+	return func(state State[T]) (Result[T, []T], error) {
 		token := make([]T, len(s))
 		_, next, err := state.Read(token)
 		if errors.Is(err, io.EOF) {
@@ -234,7 +234,7 @@ func Try[In, Out any](p Parser[In, Out]) Parser[In, Out] {
 }
 
 func Label[In, Out any](p Parser[In, Out], l string) Parser[In, Out] {
-	return func(input State[In]) (reply Result[In, Out], err error) {
+	return func(input State[In]) (Result[In, Out], error) {
 		result, err := p(input)
 		if err != nil || result.Consumed() {
 			return result, err
@@ -253,8 +253,8 @@ func Map[In, Out1, Out2 any](p Parser[In, Out1], f func(Out1) Out2) Parser[In, O
 	})
 }
 
-func End[In any](s State[In]) (reply Result[In, struct{}], err error) {
-	_, _, err = s.cursor.Read([]In{})
+func End[In any](s State[In]) (Result[In, struct{}], error) {
+	_, _, err := s.cursor.Read([]In{})
 	if errors.Is(err, io.EOF) {
 		return Succeed(true, struct{}{}, s, MessageOK(s.Pos())), nil
 	}