diff --git a/python/manifests/init.pp b/python/manifests/init.pp
index a85e2e6..5290617 100644
--- a/python/manifests/init.pp
+++ b/python/manifests/init.pp
@@ -183,7 +183,7 @@ define python::pip::install($source=undef) {
     exec { "pip-install-${name}":
       refreshonly => true,
       path        => '/bin:/usr/bin:/usr/local/bin:/sbin:/usr/sbin:/usr/local/sbin',
-      command     => "pip install --no-index /usr/local/src/${name}",
+      command     => "/bin/sh -c 'umask 022; pip install --no-index /usr/local/src/${name}'",
       subscribe   => File["/usr/local/src/${name}"],
     }
   } else {