diff --git a/setup.py b/setup.py
index 13cdb38590e00dcefce594c977a846141e6be7e7..f89ac019ce83b63530af5ea146a31dbe5df6c522 100644
--- a/setup.py
+++ b/setup.py
@@ -41,7 +41,7 @@ requires_setup = [
     "Flask-PluginKit>=3.6.0",
     "Flask-ResponseBuilder>=2.0.12",
     "Flask-Babel>=2",
-    "npmdownloader>=1.2.1"
+    "npmdownloader>=1.2.1",
     "pytoml==0.1.21"
 ]