diff --git a/external/external_build.cmake b/external/external_build.cmake
index 53f7949..c8fedcf 100644
--- a/external/external_build.cmake
+++ b/external/external_build.cmake
@@ -26,7 +26,7 @@ MACRO(CHECK_CHANGE_STATE VAR)
 ENDMACRO(CHECK_CHANGE_STATE)
 
 CHECK_CHANGE_STATE(INTERNAL_BOOST Boost_LIBRARIES Boost_INCLUDE_DIRS)
-CHECK_CHANGE_STATE(INTERNAL_EIGEN EIGEN3_INCLUDE_DIRS)
+CHECK_CHANGE_STATE(INTERNAL_EIGEN EIGEN3_INCLUDEDIR)
 CHECK_CHANGE_STATE(INTERNAL_GSL GSL_LIBRARY GSL_CBLAS_LIBRARY GSL_INCLUDE)
 CHECK_CHANGE_STATE(INTERNAL_HDF5 
     HDF5_INCLUDE_DIR HDF5_LIBRARIES HDF5_CXX_LIBRARIES 
@@ -130,6 +130,7 @@ else (INTERNAL_HDF5)
       endif()
     endforeach()
     cmessage(STATUS "HDF5 libpath: ${HDF5_BIN_DIR}")
+    SET(HDF5_INCLUDE_DIR ${HDF5_INCLUDE_DIRS})
   else()
     cmessage(STATUS "Found HDF5 cmake config.")
     cmessage(STATUS "HDF5_C_STATIC_LIBRARY : ${HDF5_C_STATIC_LIBRARY}")
@@ -342,7 +343,7 @@ IF (INTERNAL_EIGEN)
        -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
        -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
   )
-  SET(EIGEN3_INCLUDE_DIRS ${EXT_INSTALL}/include/eigen3)
+  SET(EIGEN3_INCLUDEDIR ${EXT_INSTALL}/include/eigen3)
 
 ELSE (INTERNAL_EIGEN)
    if(DEFINED EIGEN_PATH)
@@ -356,6 +357,9 @@ ELSE (INTERNAL_EIGEN)
   if (NOT  EIGEN3_FOUND)
     cmessage(CWARNING "Eigen library not found")
   else()
+    IF(EIGEN3_STATIC_INCLUDE_DIRS)
+      SET(EIGEN3_INCLUDE_DIRS ${EIGEN3_STATIC_INCLUDE_DIRS})
+    ENDIF()
     cmessage(STATUS "Found EIGEN3 in ${EIGEN3_INCLUDE_DIRS}")
   endif()
 ENDIF(INTERNAL_EIGEN)
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 8b27365..927785e 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -41,7 +41,7 @@ if (HDF5_FOUND)
   set_property(TARGET CosmoHDF5 PROPERTY POSITION_INDEPENDENT_CODE ${BUILD_SHARED_LIBS})
   target_include_directories(CosmoHDF5 BEFORE PRIVATE ${HDF5_INCLUDE_DIR})
 else(HDF5_FOUND)
-  add_library(CosmoHdf5  OBJECT
+  add_library(CosmoHDF5  OBJECT
     loadFlash_dummy.cpp
   )
 endif (HDF5_FOUND)
diff --git a/src/hdf5_array.hpp b/src/hdf5_array.hpp
index 2e73b9a..f6d2f29 100644
--- a/src/hdf5_array.hpp
+++ b/src/hdf5_array.hpp
@@ -51,7 +51,7 @@ knowledge of the CeCILL license and that you accept its terms.
 #include <H5Cpp.h>
 
 namespace CosmoTool {
-#if (H5_VERS_MAJOR == 1) && (H5_VERS_MINOR <= 8)
+#if H5_VERSION_GE(1,8,20)
   typedef H5::CommonFG H5_CommonFileGroup;
 #else
   typedef H5::Group H5_CommonFileGroup;