diff --git a/include/maxwell/maxwell_postpro.h b/include/maxwell/maxwell_postpro.h
index 75e94cf99060336e194caa671bfa9e857760dbe6..fe345ade591e8aedd4380882c93e0db6768a4020 100644
--- a/include/maxwell/maxwell_postpro.h
+++ b/include/maxwell/maxwell_postpro.h
@@ -8,4 +8,5 @@ field_values eval_field(const field&, size_t, size_t, const vecxd&);
 field_values compute_error(const model&, const solver_state&, const parameter_loader&);
 field_values compute_energy(const model&, const solver_state&, const parameter_loader&);
 
-} // namespace maxwell
\ No newline at end of file
+} // namespace maxwell
+
diff --git a/src/maxwell/maxwell_postpro.cpp b/src/maxwell/maxwell_postpro.cpp
index 9d9d603bd61e1ac6277c3736389af2d9c9b1d97c..2d162f6c88c5893fb7b0b9ecba87a9779bc9a5a7 100644
--- a/src/maxwell/maxwell_postpro.cpp
+++ b/src/maxwell/maxwell_postpro.cpp
@@ -1,6 +1,6 @@
 
 #ifdef USE_MPI
-#include <mpi.h>
+#include "common/mpi_helpers.h"
 #endif /* USE_MPI */
 
 #include "maxwell/maxwell_postpro.h"
@@ -113,4 +113,5 @@ validate(const model&, maxwell::solver_state_gpu&,
 {}
 #endif /* ENABLE_GPU_SOLVER */
 
-} // namespace maxwell
\ No newline at end of file
+} // namespace maxwell
+