diff --git a/appl/lecture/msm/1p2cvs2p/watercontaminantfluidsystem.hh b/appl/lecture/msm/1p2cvs2p/watercontaminantfluidsystem.hh
index 99f490b5ed9077f9a11257d2348802a955bc5d2f..f9966c5e6292909c313e48cb8e930ed2cb04e455 100644
--- a/appl/lecture/msm/1p2cvs2p/watercontaminantfluidsystem.hh
+++ b/appl/lecture/msm/1p2cvs2p/watercontaminantfluidsystem.hh
@@ -27,8 +27,6 @@
 #ifndef DUMUX_WATER_CONTAMINANT_FLUID_SYSTEM_HH
 #define DUMUX_WATER_CONTAMINANT_FLUID_SYSTEM_HH
 
-#include <dumux/material/MpNcfluidstates/genericfluidstate.hh>
-
 #include <dumux/material/components/simpleh2o.hh>
 #include <dumux/material/components/h2o.hh>
 #include <dumux/material/components/n2.hh>
@@ -36,7 +34,6 @@
 #include <dumux/material/idealgas.hh>
 
 #include <dumux/material/binarycoefficients/h2o_n2.hh>
-#include <dumux/material/MpNcfluidstates/genericfluidstate.hh>
 
 #include <dumux/common/valgrind.hh>
 #include <dumux/common/exceptions.hh>