diff --git a/src/inventory/application/port/output/db/customization_name_exists_for_product.rs b/src/inventory/application/port/output/db/customization_name_exists_for_product.rs
index 0550b3c..948d0db 100644
--- a/src/inventory/application/port/output/db/customization_name_exists_for_product.rs
+++ b/src/inventory/application/port/output/db/customization_name_exists_for_product.rs
@@ -4,6 +4,7 @@
 
 use mockall::predicate::*;
 use mockall::*;
+use uuid::Uuid;
 
 use crate::inventory::domain::product_aggregate::Customization;
 
@@ -18,6 +19,7 @@ pub trait CustomizationNameExistsForProductDBPort: Send + Sync {
     async fn customization_name_exists_for_product(
         &self,
         c: &Customization,
+        product_id: &Uuid,
     ) -> InventoryDBResult<bool>;
 }
 
@@ -37,10 +39,10 @@ pub mod tests {
         if let Some(times) = times {
             m.expect_customization_name_exists_for_product()
                 .times(times)
-                .returning(|_| Ok(false));
+                .returning(|_, _| Ok(false));
         } else {
             m.expect_customization_name_exists_for_product()
-                .returning(|_| Ok(false));
+                .returning(|_, _| Ok(false));
         }
 
         Arc::new(m)
@@ -53,10 +55,10 @@ pub mod tests {
         if let Some(times) = times {
             m.expect_customization_name_exists_for_product()
                 .times(times)
-                .returning(|_| Ok(true));
+                .returning(|_, _| Ok(true));
         } else {
             m.expect_customization_name_exists_for_product()
-                .returning(|_| Ok(true));
+                .returning(|_, _| Ok(true));
         }
 
         Arc::new(m)
diff --git a/src/inventory/application/services/add_product_service.rs b/src/inventory/application/services/add_product_service.rs
index 6567872..b39e9bd 100644
--- a/src/inventory/application/services/add_product_service.rs
+++ b/src/inventory/application/services/add_product_service.rs
@@ -84,7 +84,7 @@ impl AddProductUseCase for AddProductService {
 
             if self
                 .db_customization_name_exists_for_product
-                .customization_name_exists_for_product(&customization)
+                .customization_name_exists_for_product(&customization, &product_id)
                 .await?
             {
                 return Err(InventoryError::DuplicateCustomizationName);