diff --git a/scripts/mdx-scripts/talk-conversion.js b/scripts/mdx-scripts/talk-conversion.js
index ca7bbf9..f7a00d1 100644
--- a/scripts/mdx-scripts/talk-conversion.js
+++ b/scripts/mdx-scripts/talk-conversion.js
@@ -98,7 +98,7 @@ title: '${title.replaceAll("'", "''")}'
 presentors:
   - '${presentors.join("\n  - ").replaceAll("'", "''")}'
 thumbnails:
-  small: '${thumbSmall}'${thumbLarge ? `\n  large: ${thumbLarge}` : ""}
+  small: '${thumbSmall}'${thumbLarge ? `\n  large: '${thumbLarge}'` : ""}
 links:
 ${links.join("\n")}
 ---