diff --git a/setup.py b/setup.py
index 9a432b4..f8d15fa 100755
--- a/setup.py
+++ b/setup.py
@@ -38,7 +38,7 @@ setup(name='transwhat',
     install_requires=[
         'protobuf',
         'yowsup',
-        'pyspectrum2'
+        'pyspectrum2',
         'Pillow',
         'python-dateutil'
     ],