diff --git a/paper-toggle-button.html b/paper-toggle-button.html
index be74682..7eb8a23 100644
--- a/paper-toggle-button.html
+++ b/paper-toggle-button.html
@@ -132,6 +132,7 @@
       :host([checked]) .toggle-button {
         -webkit-transform: translate(16px, 0);
         transform: translate(16px, 0);
+        @apply --paper-toggle-button-checked-button;
       }
 
       :host(:dir(rtl)):host([checked]) .toggle-button,