diff --git a/src/snapshot_middleware/json_model.rs b/src/snapshot_middleware/json_model.rs
index aab58614..8fc41d3b 100644
--- a/src/snapshot_middleware/json_model.rs
+++ b/src/snapshot_middleware/json_model.rs
@@ -122,7 +122,7 @@ impl JsonModelCore {
 
         InstanceSnapshot {
             snapshot_id: None,
-            metadata: Default::default(), // TODO
+            metadata: Default::default(), // TODO: Allow the user to specify metadata in the JSON model again.
             name: Cow::Owned(name),
             class_name: Cow::Owned(class_name),
             properties,