diff --git a/docs/internals/contributing.txt b/docs/internals/contributing.txt
index 007de8bdf8..0558388212 100644
--- a/docs/internals/contributing.txt
+++ b/docs/internals/contributing.txt
@@ -854,7 +854,7 @@ for generic relations and internationalization, type:
 
 .. code-block:: bash
 
-    PYTHONPATH=..
+    PYTHONPATH=`pwd`/..
     ./runtests.py --settings=settings generic_relations i18n
 
 Contrib apps