diff --git a/doc/conf.py b/doc/conf.py
index fe5a4d7b73250698f8f0f1954f3714c681df9c81..aca41b5a360f65af4a84472dead970d10045be66 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -240,6 +240,7 @@ intersphinx_mapping = {
     'http://documen.tician.de/islpy': None,
     'http://documen.tician.de/pyopencl': None,
     'http://documen.tician.de/cgen': None,
+    'http://docs.scipy.org/doc/numpy/': None,
     }
 
 autoclass_content = "both"