diff --git a/server/dive_server/crud_annotation.py b/server/dive_server/crud_annotation.py
index 038c4b9af..3a1041bd6 100644
--- a/server/dive_server/crud_annotation.py
+++ b/server/dive_server/crud_annotation.py
@@ -105,8 +105,6 @@ def list(
             query[REVISION] = {'$lte': before}
         if set:
             query[SET] = set
-        else:
-            query[SET] = None
         cursor = self.find(
             offset=offset,
             limit=limit,