diff --git a/index.html b/index.html
index 55e10f12..dc90429c 100644
--- a/index.html
+++ b/index.html
@@ -64,10 +64,10 @@
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-      <a href="https://www.reddit.com/submit?url=https://pomax.github.io/bezierinfo">
+      <a href="https://www.reddit.com/submit?url=https://pomax.github.io/bezierinfo&title=A Primer on Bézier Curves&text=A free, online book for when you really need to know how to do Bézier things.">
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-      <a href="https://news.ycombinator.com/submitlink?u=https://pomax.github.io/bezierinfo">
+      <a href="https://news.ycombinator.com/submitlink?u=https://pomax.github.io/bezierinfo&t=A Primer on Bézier Curves">
         <img src="https://news.ycombinator.com/y18.gif" alt="submit to hacker news" title="submit to hacker news">
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       <a href="https://twitter.com/intent/tweet?hashtags=bezier,curves,maths&original_referer=https://pomax.github.io/bezierinfo&text=Reading%20%22A%20Primer%20on%20Bezier%20Curves%22%20by%20@TheRealPomax%20over%20on%20https://pomax.github.io/bezierinfo">