--- a/services/sync/tps/extensions/tps/resource/auth/fxaccounts.jsm
+++ b/services/sync/tps/extensions/tps/resource/auth/fxaccounts.jsm
@@ -173,17 +173,19 @@ var Authentication = {
 
     try {
       // Required here since we don't go through the real login page
       await FxAccountsConfig.ensureConfigured();
 
       let client = new FxAccountsClient();
       let credentials = await client.signIn(account.username, account.password, true);
       await fxAccounts.setSignedInUser(credentials);
-      await this._completeVerification(account.username);
+      if (!credentials.verified) {
+        await this._completeVerification(account.username);
+      }
 
       if (Weave.Status.login !== Weave.LOGIN_SUCCEEDED) {
         Logger.logInfo("Logging into Weave.");
         await Weave.Service.login();
       }
       return true;
     } catch (error) {
       throw new Error("signIn() failed with: " + error.message);