diff --git a/src/client/core-client-netcfg.hpp b/src/client/core-client-netcfg.hpp
index b911f92..17f4f1a 100644
--- a/src/client/core-client-netcfg.hpp
+++ b/src/client/core-client-netcfg.hpp
@@ -68,10 +68,12 @@ class NetCfgTunBuilder : public T
         // Explicitly call cleanup
         try
         {
+#ifdef ENABLE_OVPNDCO
             if (dco)
             {
                 dco.reset();
             }
+#endif
             if (device)
             {
                 device->Destroy();