diff --git a/opm/core/linalg/LinearSolverIstl.cpp b/opm/core/linalg/LinearSolverIstl.cpp
index 791fcb17..3c4435e8 100644
--- a/opm/core/linalg/LinearSolverIstl.cpp
+++ b/opm/core/linalg/LinearSolverIstl.cpp
@@ -24,10 +24,7 @@
 
 #include <opm/core/linalg/LinearSolverIstl.hpp>
 
-// Work around the fact that istl headers expect
-// HAVE_BOOST to be 1, and not just defined.
-#undef HAVE_BOOST
-#define HAVE_BOOST 1
+#include <opm/core/utility/have_boost_redef.hpp>
 
 // TODO: clean up includes.
 #include <dune/common/deprecated.hh>