diff --git a/pypi-list.py b/pypi-list.py
index a92329a..c045421 100644
--- a/pypi-list.py
+++ b/pypi-list.py
@@ -91,6 +91,13 @@ pipeline = Pipeline(
             name="available_json",
             tags=["json"],
         ),
+        node(
+            lambda x: x,
+            inputs="unavailable",
+            outputs="unavailable_json",
+            name="unavailable_json",
+            tags=["json"],
+        ),
     ]
 )