diff --git a/gigaparsec.go b/gigaparsec.go
index d89cf07..e8061c8 100644
--- a/gigaparsec.go
+++ b/gigaparsec.go
@@ -11,16 +11,16 @@ import (
 
 type Result[In, Out any] struct {
 	consumed, failed bool
-	Value            Out
+	value            Out
 	next             State[In]
-	Message          Message
+	message          Message
 }
 
 func Fail[In, Out any](consumed bool, msg Message) Result[In, Out] {
 	return Result[In, Out]{
 		consumed: consumed,
 		failed:   true,
-		Message:  msg,
+		message:  msg,
 	}
 }
 
@@ -28,7 +28,7 @@ func (r Result[In, Out]) Failed() (ok, consumed bool, msg Message) {
 	ok = r.failed
 	if ok {
 		consumed = r.consumed
-		msg = r.Message
+		msg = r.message
 	}
 	return
 }
@@ -36,10 +36,10 @@ func (r Result[In, Out]) Failed() (ok, consumed bool, msg Message) {
 func Succeed[In, Out any](consumed bool, value Out, next State[In], msg Message) Result[In, Out] {
 	return Result[In, Out]{
 		failed:   false,
-		Value:    value,
+		value:    value,
 		consumed: consumed,
 		next:     next,
-		Message:  msg,
+		message:  msg,
 	}
 }
 
@@ -47,9 +47,9 @@ func (r Result[In, Out]) Succeeded() (ok, consumed bool, value Out, next State[I
 	ok = !r.failed
 	if ok {
 		consumed = r.consumed
-		value = r.Value
+		value = r.value
 		next = r.next
-		msg = r.Message
+		msg = r.message
 	}
 	return
 }