1 files changed, 2 insertions, 1 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 472d742..22d1c0a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -26,7 +26,8 @@ IF(ENABLE_PYTHON)
         FIND_PACKAGE( PythonLibs )
 ENDIF(ENABLE_PYTHON)
 
-INCLUDE_DIRECTORIES( "${CMAKE_CURRENT_SOURCE_DIR}/include" )
+INCLUDE_DIRECTORIES( ${CMAKE_CURRENT_SOURCE_DIR}/include
+                     ${CMAKE_INCLUDE_PATH})
 
 ENABLE_TESTING()