diff --git a/docs/autogen_shortcuts.py b/docs/autogen_shortcuts.py
index 387c105..23b4711 100755
--- a/docs/autogen_shortcuts.py
+++ b/docs/autogen_shortcuts.py
@@ -88,6 +88,8 @@ def format_filter(
         return result
     elif s in ["Never", "Always"]:
         return s.lower()
+    elif s == "PassThrough":
+        return "pass_through"
     else:
         raise ValueError(f"Unknown filter type: {filter_}")