diff --git a/setup.py b/setup.py
index d0d649612..249819caf 100755
--- a/setup.py
+++ b/setup.py
@@ -41,6 +41,7 @@ setup(
         "pynacl",
         "daemonize",
         "py-bcrypt",
+        "pillow",
     ],
     dependency_links=[
         "https://github.com/matrix-org/syutil/tarball/v0.0.2#egg=syutil-0.0.2",