diff --git a/src/client/theme-default/styles/components/vp-doc.css b/src/client/theme-default/styles/components/vp-doc.css
index 7220523c7389..a9183cc1ef0e 100644
--- a/src/client/theme-default/styles/components/vp-doc.css
+++ b/src/client/theme-default/styles/components/vp-doc.css
@@ -40,6 +40,7 @@
   margin-left: -0.87em;
   padding-right: 0.23em;
   font-weight: 500;
+  user-select: none;
   opacity: 0;
   transition: color 0.25s, opacity 0.25s;
 }