diff --git a/opm/models/flash/flashratevector.hh b/opm/models/flash/flashratevector.hh
index e3533e027..8fe1a83b4 100644
--- a/opm/models/flash/flashratevector.hh
+++ b/opm/models/flash/flashratevector.hh
@@ -31,7 +31,6 @@
 #include <dune/common/fvector.hh>
 
 #include <opm/models/common/energymodule.hh>
-#include <opm/material/constraintsolvers/NcpFlash.hpp>
 #include <opm/material/common/Valgrind.hpp>
 
 #include "flashintensivequantities.hh"