diff --git a/quartz/styles/custom.scss b/quartz/styles/custom.scss
index 17dee5881..7cb58d44a 100644
--- a/quartz/styles/custom.scss
+++ b/quartz/styles/custom.scss
@@ -4,10 +4,6 @@ a[href^=http]:not([href*=pmcf\.xyz]):after {
   content: " ↗"
 }
 
-a.external {
-  text-decoration: underline;
-}
-
 a.internal {
   border-radius: .1875rem;
   padding: 0 .3rem;