diff --git a/CMakeLists.txt b/CMakeLists.txt
index c26d3b9..1ebcceb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,7 +12,7 @@ boost_library_project(
   #  SRCDIRS 
   TESTDIRS  test
   HEADERS ${lib_headers}
-  #  DOCDIRS 
+  DOCDIRS doc
   #  DESCRIPTION 
   MODULARIZED 
   #  AUTHORS 
diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
new file mode 100644
index 0000000..fc5ed7c
--- /dev/null
+++ b/doc/CMakeLists.txt
@@ -0,0 +1,2 @@
+boost_add_documentation(optional.qbk)
+