diff --git a/test/porenetwork/2pnc/problem.hh b/test/porenetwork/2pnc/problem.hh
index 5b34d543322833bc37857767d3947a3ec36ddd90..7f65baa7715b6d9fb6a08ff39fcdd3d8ae275fb4 100644
--- a/test/porenetwork/2pnc/problem.hh
+++ b/test/porenetwork/2pnc/problem.hh
@@ -13,6 +13,7 @@
 #define DUMUX_PNM_2P_NC_PROBLEM_HH
 
 #include <dumux/common/boundarytypes.hh>
+#include <dumux/porenetwork/2pnc/model.hh>
 #include <dumux/common/parameters.hh>
 #include <dumux/porousmediumflow/problem.hh>
 #include <dumux/material/components/air.hh>