diff --git a/lmfdb/knowledge/main.py b/lmfdb/knowledge/main.py
index e3b7ed8cf3..809018147b 100644
--- a/lmfdb/knowledge/main.py
+++ b/lmfdb/knowledge/main.py
@@ -350,7 +350,6 @@ def edit(ID):
     elif knowl.type == 0:
         title = "Edit Knowl '%s'" % ID
     elif knowl.type == 2:
-        pieces = ID.split(".")
         if knowl.source:
             title = f"Edit column information for '{knowl.source_name}' in '{knowl.source}'"
         else: