diff --git a/api/handlers/dataexplorerhandler.py b/api/handlers/dataexplorerhandler.py
index ad2c0ebc51281673103d29aeb6eba88cf84ad3d5..7bb87eb2d721c348f70db0848318ee7c0928d29b 100644
--- a/api/handlers/dataexplorerhandler.py
+++ b/api/handlers/dataexplorerhandler.py
@@ -249,6 +249,7 @@ SOURCE_COMMON = [
 
 SOURCE_COLLECTION = [
     "permissions",
+    "collection._id",
     "collection.label",
     "collection.curator",
     "collection.created",