diff --git a/requirements.txt b/requirements.txt
index c839c21c4..a95a0807f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,3 +4,4 @@ jsonschema==2.4.0
 python-augeas==0.5.0
 requests==2.4.3
 argparse==1.2.2
+mock==1.0.1
diff --git a/setup.py b/setup.py
index a2a13fecf..a80a22778 100755
--- a/setup.py
+++ b/setup.py
@@ -18,6 +18,7 @@ docs_extras = [
 
 testing_extras = [
     'coverage',
+    'mock',
     'nose',
     'nosexcover',
     'pylint',