diff --git a/flowexperimental/comp/wells/CompositionalWellModel_impl.hpp b/flowexperimental/comp/wells/CompositionalWellModel_impl.hpp
index 34a6cb0486..83c9e02e2b 100644
--- a/flowexperimental/comp/wells/CompositionalWellModel_impl.hpp
+++ b/flowexperimental/comp/wells/CompositionalWellModel_impl.hpp
@@ -26,6 +26,7 @@
 #include <flowexperimental/comp/wells/CompositionalWellModel.hpp>
 #endif
 
+#include <opm/input/eclipse/EclipseState/EclipseState.hpp>
 #include <opm/input/eclipse/Schedule/Schedule.hpp>
 #include <opm/input/eclipse/Schedule/Well/WellConnections.hpp>