diff --git a/CMakeLists.txt b/CMakeLists.txt
index e2e45f6..1830463 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -31,6 +31,8 @@ find_library(NETCDF_LIBRARY netcdf)
 find_library(GSL_LIBRARY gsl)
 find_library(GSLCBLAS_LIBRARY gslcblas)
 
+find_package(Boost 1.53)
+
 if (ENABLE_SHARP)
   SET(SHARP_SOURCE ${CMAKE_SOURCE_DIR}/external/sharp)
   SET(DEP_BUILD ${CMAKE_SOURCE_DIR}/external/sharp/auto)
diff --git a/sample/CMakeLists.txt b/sample/CMakeLists.txt
index e7f60fe..a333aff 100644
--- a/sample/CMakeLists.txt
+++ b/sample/CMakeLists.txt
@@ -1,5 +1,7 @@
 SET(tolink ${GSL_LIBRARIES} CosmoTool ${CosmoTool_LIBS})
-include_directories(${CMAKE_SOURCE_DIR}/src ${FFTW3_INCLUDE_DIRS} ${EIGEN3_INCLUDE_DIRS} ${NETCDF_INCLUDE_PATH} ${GSL_INCLUDE_PATH})
+include_directories(${CMAKE_SOURCE_DIR}/src)
+include_directories(${FFTW3_INCLUDE_DIRS}
+${EIGEN3_INCLUDE_DIRS} ${NETCDF_INCLUDE_PATH} ${GSL_INCLUDE_PATH})
 
 IF(SHARP_INCLUDE_PATH)
   include_directories(BEFORE ${SHARP_INCLUDE_PATH})
@@ -11,9 +13,6 @@ target_link_libraries(testBQueue ${tolink})
 add_executable(testInterpolate testInterpolate.cpp)
 target_link_libraries(testInterpolate ${tolink})
 
-add_executable(testSmooth testSmooth.cpp)
-target_link_libraries(testSmooth ${tolink})
-
 add_executable(testkd testkd.cpp)
 target_link_libraries(testkd ${tolink})
 
@@ -69,6 +68,12 @@ endif (ENABLE_SHARP AND SHARP_LIBRARY AND SHARP_INCLUDE_PATH AND EIGEN3_FOUND)
 add_executable(test_cosmopower test_cosmopower.cpp)
 target_link_libraries(test_cosmopower ${tolink})
 
+if (Boost_FOUND)
+  include_directories(${Boost_INCLUDE_DIRS})
 
-add_executable(simple3DFilter simple3DFilter.cpp)
-target_link_libraries(simple3DFilter ${tolink})
+  add_executable(testSmooth testSmooth.cpp)
+  target_link_libraries(testSmooth ${tolink})
+
+  add_executable(simple3DFilter simple3DFilter.cpp)
+  target_link_libraries(simple3DFilter ${tolink})
+endif (Boost_FOUND)
diff --git a/sample/simple3DFilter.cpp b/sample/simple3DFilter.cpp
index 8b91332..b7d1498 100644
--- a/sample/simple3DFilter.cpp
+++ b/sample/simple3DFilter.cpp
@@ -1,8 +1,8 @@
 #include <cassert>
-#include <CosmoTool/yorick.hpp>
-#include <CosmoTool/sphSmooth.hpp>
-#include <CosmoTool/mykdtree.hpp>
-#include <CosmoTool/miniargs.hpp>
+#include "yorick.hpp"
+#include "sphSmooth.hpp"
+#include "mykdtree.hpp"
+#include "miniargs.hpp"
 
 using namespace std;
 using namespace CosmoTool;