diff --git a/vpn_service.h b/vpn_service.h
index 3ac9171..5f9a0b1 100644
--- a/vpn_service.h
+++ b/vpn_service.h
@@ -48,8 +48,8 @@
 
  protected:
   // Inherited from Service.
-  virtual bool IsAutoConnectable(const char **reason) const;
-  virtual std::string GetTethering(Error *error) const override;
+  bool IsAutoConnectable(const char **reason) const override;
+  std::string GetTethering(Error *error) const override;
 
  private:
   friend class VPNServiceTest;