diff --git a/opm/core/simulator/BlackoilState.cpp b/opm/core/simulator/BlackoilState.cpp
index 97d39f72..02be96b8 100644
--- a/opm/core/simulator/BlackoilState.cpp
+++ b/opm/core/simulator/BlackoilState.cpp
@@ -2,7 +2,7 @@
 #include <opm/common/util/numeric/cmp.hpp>
 #include <opm/core/props/BlackoilPropertiesInterface.hpp>
 #include <opm/core/simulator/WellState.hpp>
-#include <opm/output/Wells.hpp>
+#include <opm/output/data/Wells.hpp>
 
 
 using namespace Opm;
diff --git a/opm/core/simulator/WellState.hpp b/opm/core/simulator/WellState.hpp
index a909371e..613b8a06 100644
--- a/opm/core/simulator/WellState.hpp
+++ b/opm/core/simulator/WellState.hpp
@@ -22,7 +22,7 @@
 
 #include <opm/core/wells.h>
 #include <opm/core/well_controls.h>
-#include <opm/output/Wells.hpp>
+#include <opm/output/data/Wells.hpp>
 
 #include <array>
 #include <map>