diff --git a/openvpn/tun/builder/capture.hpp b/openvpn/tun/builder/capture.hpp
index 3f1a4e277..a7fabfe6b 100644
--- a/openvpn/tun/builder/capture.hpp
+++ b/openvpn/tun/builder/capture.hpp
@@ -41,7 +41,7 @@ namespace openvpn {
 class TunBuilderCapture : public TunBuilderBase, public RC<thread_unsafe_refcount>
 {
   public:
-    typedef RCPtr<TunBuilderCapture> Ptr;
+    using Ptr = RCPtr<TunBuilderCapture>;
 
     // builder data classes