diff --git a/website/src/pages/talks/index.astro b/website/src/pages/talks/index.astro
index 1305bb30..7efa616e 100644
--- a/website/src/pages/talks/index.astro
+++ b/website/src/pages/talks/index.astro
@@ -5,10 +5,8 @@ import PageLayout from '../../layouts/PageLayout.astro'
 const talks = await Astro.glob("../../talks/*.md")
 
 const talkCount = _(talks)
-  .map((talk) => talk.frontmatter.events)
-  .flatten()
-  .value()
-  .length
+  .flatMap((talk) => talk.frontmatter.events)
+  .size()
 
 const sortedTalks = talks
   .map(talk => {