diff --git a/assets/css/main.css b/assets/css/main.css
index faa4630..2bf8ad7 100755
--- a/assets/css/main.css
+++ b/assets/css/main.css
@@ -42,7 +42,7 @@ strong {
 .chapter-title {
   text-decoration: underline;
   text-decoration-thickness: 2px;
-  text-decoration-color: #5f573c;
+  text-decoration-color: var(--accent-color);
   text-underline-offset:35%;
 }