diff --git a/python-OWSLib.spec b/python-OWSLib.spec
index af099ee..5da3f41 100644
--- a/python-OWSLib.spec
+++ b/python-OWSLib.spec
@@ -11,7 +11,8 @@ Summary:        Client library for OGC web services
 
 License:        BSD-3-Clause
 URL:            https://geopython.github.io/OWSLib
-Source:         https://github.com/geopython/OWSLib/archive/%{version}/OWSLib-%{version}.tar.gz
+%global forgeurl https://github.com/geopython/OWSLib
+Source:         %{forgeurl}/archive/%{version}/OWSLib-%{version}.tar.gz
 
 BuildArch:      noarch