diff --git a/eo/src/mpi/CMakeLists.txt b/eo/src/mpi/CMakeLists.txt
index ebf16335a..b33c19f6a 100644
--- a/eo/src/mpi/CMakeLists.txt
+++ b/eo/src/mpi/CMakeLists.txt
@@ -3,6 +3,7 @@
 ######################################################################################
 
 include_directories(${EO_SRC_DIR}/src)
+include_directories(${EOSERIAL_SRC_DIR}/src)
 include_directories(${CMAKE_CURRENT_SOURCE_DIR})
 
 ######################################################################################
diff --git a/eo/src/mpi/implMpi.h b/eo/src/mpi/implMpi.h
index b7c1cd4ba..8385938a2 100644
--- a/eo/src/mpi/implMpi.h
+++ b/eo/src/mpi/implMpi.h
@@ -23,7 +23,7 @@ Authors:
 # define __EO_IMPL_MPI_HPP__
 
 # include <mpi.h>
-# include <serial/eoSerial.h>
+# include <eoSerial.h>
 
 /**
  * This namespace contains reimplementations of some parts of the Boost::MPI API in C++, so as to be used in
diff --git a/eo/src/utils/eoTimer.h b/eo/src/utils/eoTimer.h
index 8a1fbb1a8..e9d39affd 100644
--- a/eo/src/utils/eoTimer.h
+++ b/eo/src/utils/eoTimer.h
@@ -30,7 +30,7 @@ Authors:
 
 # include "utils/eoParallel.h" // eo::parallel
 
-# include "serial/eoSerial.h" // eo::Persistent
+# include "eoSerial.h" // eo::Persistent
 
 /**
  * @brief Timer allowing to measure time between a start point and a stop point.