diff --git a/CMakeLists.txt b/CMakeLists.txt
index b2a41b6..3893989 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,4 +4,6 @@ project(nestlog VERSION 0.1)
 enable_language(CXX)
 enable_testing()
 
+include(cmake/nestlog.cmake)
+
 add_subdirectory(example)
diff --git a/example/ex1/CMakeLists.txt b/example/ex1/CMakeLists.txt
index ce8d9a5..6af29d7 100644
--- a/example/ex1/CMakeLists.txt
+++ b/example/ex1/CMakeLists.txt
@@ -1,3 +1,2 @@
 add_executable(ex1 ex1.cpp)
-
-target_include_directories(ex1 PUBLIC ${PROJECT_SOURCE_DIR}/include)
+xo_include_options(ex1)
diff --git a/example/ex2/CMakeLists.txt b/example/ex2/CMakeLists.txt
index 76ae6f6..1ac5735 100644
--- a/example/ex2/CMakeLists.txt
+++ b/example/ex2/CMakeLists.txt
@@ -1,3 +1,2 @@
 add_executable(ex2 ex2.cpp)
-
-target_include_directories(ex2 PUBLIC ${PROJECT_SOURCE_DIR}/include)
+xo_include_options(ex2)