diff --git a/eo/src/CMakeLists.txt b/eo/src/CMakeLists.txt
index b2b445a93..a06f59141 100644
--- a/eo/src/CMakeLists.txt
+++ b/eo/src/CMakeLists.txt
@@ -2,6 +2,8 @@
 ### 1) Include the sources
 ######################################################################################
 
+include_directories(${EOMPI_SRC_DIR}/src)
+include_directories(${EOSERIAL_SRC_DIR}/src)
 include_directories(${CMAKE_CURRENT_SOURCE_DIR})
 
 ######################################################################################
diff --git a/eo/test/mpi/t-mpi-common.h b/eo/test/mpi/t-mpi-common.h
index c862a05c1..e525fe53e 100644
--- a/eo/test/mpi/t-mpi-common.h
+++ b/eo/test/mpi/t-mpi-common.h
@@ -1,7 +1,7 @@
 # ifndef __T_MPI_COMMON_H__
 # define __T_MPI_COMMON_H__
 
-#include <serial/eoSerial.h>
+#include <eoSerial.h>
 
 /**
  * @file t-mpi-common.h