diff --git a/src/org/labkey/snd/query/EventDataTable.java b/src/org/labkey/snd/query/EventDataTable.java
index 5fa5df09..30302500 100644
--- a/src/org/labkey/snd/query/EventDataTable.java
+++ b/src/org/labkey/snd/query/EventDataTable.java
@@ -77,6 +77,7 @@ public SQLFragment getValueSql(String tableAliasName)
                 return new SQLFragment(tableAliasName).append(".").append("ObjectId");
             }
         };
+        objectid.setUserEditable(false);
         objectid.setHidden(true);
         objectid.setFk(new BaseColumnInfo.SchemaForeignKey(objectid, "exp", "Object", "ObjectId", false));
         // SimpleTableSchema.SimpleTable.wrapColumn() is weird. It calls addColumn() which is not the usual pattern.