diff --git a/src/inventory/domain/store_aggregate.rs b/src/inventory/domain/store_aggregate.rs
index 90fe3a2..4ea22d2 100644
--- a/src/inventory/domain/store_aggregate.rs
+++ b/src/inventory/domain/store_aggregate.rs
@@ -60,13 +60,10 @@ impl Aggregate for Store {
     fn apply(&mut self, event: Self::Event) {
         match event {
             InventoryEvent::StoreAdded(e) => {
-                *self = StoreBuilder::default()
-                    .name(e.name().into())
-                    .address(e.address().as_ref().map(|s| s.to_string()))
-                    .owner(e.owner().into())
-                    .store_id(e.store_id().clone())
-                    .build()
-                    .unwrap();
+                self.name = e.name().into();
+                self.address = e.address().as_ref().map(|s| s.to_string());
+                self.owner = e.owner().into();
+                self.store_id = e.store_id().clone();
             }
             _ => (),
         }
@@ -74,7 +71,7 @@ impl Aggregate for Store {
 }
 
 #[cfg(test)]
-mod aggregate_tests {
+mod tests {
     use std::sync::Arc;
 
     use cqrs_es::test::TestFramework;