diff --git a/services/fxaccounts/FxAccountsKeys.jsm b/services/fxaccounts/FxAccountsKeys.jsm
index 086c36e65317..9d95a66feca9 100644
--- a/services/fxaccounts/FxAccountsKeys.jsm
+++ b/services/fxaccounts/FxAccountsKeys.jsm
@@ -264,14 +264,6 @@ class FxAccountsKeys {
     );
   }
 
-  /**
-   * Invalidate the FxA certificate, so that it will be refreshed from the server
-   * the next time it is needed.
-   */
-  invalidateCertificate() {
-    return this._fxia.invalidateCertificate();
-  }
-
   /**
    * Derive the WebExtensions Sync Storage Key given the byte string kB.
    *
diff --git a/services/sync/modules/browserid_identity.js b/services/sync/modules/browserid_identity.js
index 566dfe7f63c0..0678a6af6c89 100644
--- a/services/sync/modules/browserid_identity.js
+++ b/services/sync/modules/browserid_identity.js
@@ -421,7 +421,7 @@ this.BrowserIDManager.prototype = {
         this._log.warn(
           "Token server returned 401, refreshing certificate and retrying token fetch"
         );
-        await fxa.keys.invalidateCertificate();
+        await fxa._internal.invalidateCertificate();
         keys = await fxa.keys.getKeys();
         token = await getToken(keys);
       }