diff --git a/cmake/posix/px4_impl_posix.cmake b/cmake/posix/px4_impl_posix.cmake
index 16d5b16b72..48385ff9af 100644
--- a/cmake/posix/px4_impl_posix.cmake
+++ b/cmake/posix/px4_impl_posix.cmake
@@ -171,7 +171,6 @@ function(px4_os_add_flags)
         set(PX4_BASE )
         set(added_include_dirs
 		src/modules/systemlib
-                src/lib/eigen
                 src/platforms/posix/include
                 mavlink/include/mavlink
                 )