diff --git a/01.workspace/heave/src/str/catalog.rs b/01.workspace/heave/src/str/catalog.rs
index 4b9e628..753a87a 100644
--- a/01.workspace/heave/src/str/catalog.rs
+++ b/01.workspace/heave/src/str/catalog.rs
@@ -13,9 +13,9 @@ impl O {
             ..O::default()
         }
     }
-    pub fn persist(&mut self, entity: &mut Entity) {
-        self.items.insert(entity.id.clone(), entity.clone());
-        entity.persisted = true;
+    pub fn insert(&mut self, object: impl ToEAV) {
+        let entity = object.to_eav();
+        self.items.insert(entity.id.clone(), entity);
     }
 }
 
diff --git a/01.workspace/heave/src/tst/intended_use.rs b/01.workspace/heave/src/tst/intended_use.rs
index 9c0c35f..86cbbde 100644
--- a/01.workspace/heave/src/tst/intended_use.rs
+++ b/01.workspace/heave/src/tst/intended_use.rs
@@ -130,7 +130,6 @@ mod tests {
             name: "laptop".to_string(),
             price: 200000u64,
         };
-        let mut entity = product.to_eav();
-        catalog.persist(&mut entity);
+        catalog.insert(product);
     }
 }