diff --git a/libsrc/core/mpi_wrapper.hpp b/libsrc/core/mpi_wrapper.hpp
index 7f797f34..a23443dc 100644
--- a/libsrc/core/mpi_wrapper.hpp
+++ b/libsrc/core/mpi_wrapper.hpp
@@ -1,6 +1,8 @@
 #ifndef NGCORE_MPIWRAPPER_HPP
 #define NGCORE_MPIWRAPPER_HPP
 
+#include <array>
+
 #ifdef PARALLEL
 #define OMPI_SKIP_MPICXX
 #include <mpi.h>