diff --git a/crates/fj-core/src/layers/objects.rs b/crates/fj-core/src/layers/objects.rs
index d4e6badc0..121d60dc2 100644
--- a/crates/fj-core/src/layers/objects.rs
+++ b/crates/fj-core/src/layers/objects.rs
@@ -15,7 +15,7 @@ impl Layer<Objects> {
         validation: &mut Layer<Validation>,
     ) {
         let mut events = Vec::new();
-        self.process(ObjectsCommand::InsertObject { object }, &mut events);
+        self.process(InsertObject { object }, &mut events);
 
         for event in events {
             validation.process(event, &mut Vec::new());
@@ -23,28 +23,6 @@ impl Layer<Objects> {
     }
 }
 
-/// Command for `Layer<Objects>`
-#[derive(Debug)]
-pub enum ObjectsCommand {
-    /// Insert an object into the stores
-    ///
-    /// This is the one primitive operation that all other operations are built
-    /// upon.
-    InsertObject {
-        /// The object to insert
-        object: AnyObject<AboutToBeStored>,
-    },
-}
-
-impl Command<Objects> for ObjectsCommand {
-    type Event = InsertObject;
-
-    fn decide(self, _: &Objects, events: &mut Vec<Self::Event>) {
-        let ObjectsCommand::InsertObject { object } = self;
-        events.push(InsertObject { object });
-    }
-}
-
 /// Insert an object into the stores
 ///
 /// Event produced by `Layer<Objects>`.
@@ -54,6 +32,14 @@ pub struct InsertObject {
     pub object: AnyObject<AboutToBeStored>,
 }
 
+impl Command<Objects> for InsertObject {
+    type Event = InsertObject;
+
+    fn decide(self, _: &Objects, events: &mut Vec<Self::Event>) {
+        events.push(self);
+    }
+}
+
 impl Event<Objects> for InsertObject {
     fn evolve(&self, state: &mut Objects) {
         self.object.clone().insert(state);