diff --git a/CMakeLists.txt b/CMakeLists.txt
index 60f252f..16d2931 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -90,6 +90,8 @@ if(YAML_CPP_BUILD_OLD_API)
 	list(APPEND private_headers ${common_private_headers} ${old_api_private_headers})
 	add_definitions(-DYAML_CPP_OLD_API)
 else()
+	find_package(Boost REQUIRED)
+	include_directories(${Boost_INCLUDE_DIRS})
 	list(APPEND sources ${common_sources} ${new_api_sources})
 	list(APPEND public_headers ${common_public_headers} ${new_api_public_headers})
 	list(APPEND private_headers ${common_private_headers} ${new_api_private_headers})