diff --git a/MANIFEST.in b/MANIFEST.in
index 2bb1e8408202c60578a288a1a11afa6ad8393bac..2256c45f84353064c9eb066ec7f635605dbf9d4c 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,4 +1,5 @@
 exclude boxmox/hub.py
+exclude boxmox/_site_specific.py
 recursive-include examples *
 include CHANGES.rst
 include INSTALL.rst
diff --git a/boxmox/__init__.py b/boxmox/__init__.py
index 10214cc65b6ea0d98abaec1d54632e398c1211ce..29c3ce12484ba9dc416482b9876a8c8d4645dc9d 100644
--- a/boxmox/__init__.py
+++ b/boxmox/__init__.py
@@ -1,3 +1,8 @@
+try:
+    from _site_specific import *
+except:
+    pass
+
 import _installation
 
 from data import InputFile, Output, ConcentrationOutput, RatesOutput, AdjointOutput, JacobianOutput, HessianOutput