also add stl.h header
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9100a63..07bc24f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -73,6 +73,7 @@
   include/pybind11/typeid.h
   include/pybind11/numpy.h
   include/pybind11/complex.h
+  include/pybind11/stl.h
 )
 
 # Create the binding library