diff --git a/reference/test/preconditioner/isai_kernels.cpp b/reference/test/preconditioner/isai_kernels.cpp
index ff578096391..5ed332f7e95 100644
--- a/reference/test/preconditioner/isai_kernels.cpp
+++ b/reference/test/preconditioner/isai_kernels.cpp
@@ -49,9 +49,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <ginkgo/core/preconditioner/ilu.hpp>
 
 
+#include "core/preconditioner/isai_kernels.hpp"
 #include "core/test/utils.hpp"
 #include "matrices/config.hpp"
-#include "reference/preconditioner/isai_kernels.cpp"
 
 
 namespace {