diff --git a/migration_helpers/migration_helpers.py b/migration_helpers/migration_helpers.py
index e4bbb280dd..ba7bf6f908 100644
--- a/migration_helpers/migration_helpers.py
+++ b/migration_helpers/migration_helpers.py
@@ -255,7 +255,17 @@ def migrate_custom_csv(
 
 
 def on_ready():
-    actions.user.migrate_known_csv_files()
+    try:
+        actions.user.migrate_known_csv_files()
+    except KeyError:
+        # Due to a core Talon bug, the above action may not be available when a ready callback is invoked.
+        # (see https://github.com/talonhub/community/pull/1268#issuecomment-2325721706)
+        notification = (
+            "Unable to migrate CSVs to Talon lists.",
+            "Please quit and restart Talon.",
+        )
+        app.notify(*notification)
+        print(*notification)
 
 
 app.register("ready", on_ready)