diff --git a/site/jekyll/tutorials/aspnetcore.md b/site/jekyll/tutorials/aspnetcore.md
index cc6d53fc5..23316a620 100644
--- a/site/jekyll/tutorials/aspnetcore.md
+++ b/site/jekyll/tutorials/aspnetcore.md
@@ -912,8 +912,8 @@ class CommentBox extends React.Component {
 	}
 	handleCommentSubmit(comment) {
 		const data = new FormData();
-		data.append('author', comment.author);
-		data.append('text', comment.text);
+		data.append('Author', comment.author);
+		data.append('Text', comment.text);
 
 		const xhr = new XMLHttpRequest();
 		xhr.open('post', this.props.submitUrl, true);