diff --git a/labs/gb/components/button/button.scss b/labs/gb/components/button/button.scss
index 1ea654f4cd..e8539a72bc 100644
--- a/labs/gb/components/button/button.scss
+++ b/labs/gb/components/button/button.scss
@@ -121,6 +121,8 @@
       letter-spacing: var(--label-text-tracking);
       font-variation-settings: var(--label-text-axes);
       -webkit-font-smoothing: antialiased;
+      // A link button (`href`) is an <a>: no link underline on its label.
+      text-decoration: none;
       transition:
         border-radius 350ms cubic-bezier(0.42, 1.67, 0.21, 0.9),
         var(--ripple-transition);