diff --git a/layouts/partials/reveal-hugo/body.html b/layouts/partials/reveal-hugo/body.html
index f2dd4bf..3e445a6 100644
--- a/layouts/partials/reveal-hugo/body.html
+++ b/layouts/partials/reveal-hugo/body.html
@@ -1 +1,8 @@
-<!-- override this partial to add content before the body tag closes -->
\ No newline at end of file
+<!-- override this partial to add content before the body tag closes -->
+
+<!-- hide Highlight.js line numbers -->
+<style>
+  .hljs-ln-numbers {
+    display: none;
+  }
+</style>
\ No newline at end of file