diff --git a/src/css/custom.css b/src/css/custom.css
index 33901de6..f074da74 100644
--- a/src/css/custom.css
+++ b/src/css/custom.css
@@ -67,7 +67,7 @@ html[data-theme="dark"] .header-github-link:before {
 
 .indexCtas a {
   color: var(--ifm-font-color-base-inverse);
-  --ifm-button-border-color: var(--ifm-button-border-color);
+  --ifm-button-border-color: var(--ifm-font-color-base-inverse);
 }
 
 .indexCtas a:hover {