diff --git a/docs/source/writing_koji_code.rst b/docs/source/writing_koji_code.rst
index 41d66925..759d0b94 100644
--- a/docs/source/writing_koji_code.rst
+++ b/docs/source/writing_koji_code.rst
@@ -799,6 +799,7 @@ You will need to install the following packages to actually run the tests.
  * ``python-mock``
  * ``python-psycopg2``
  * ``python-requests``
+ * ``python-requests-mock``
  * ``python-qpid-proton``
 
 Please note that it is currently not supported to use *virtualenv* when hacking