diff --git a/collection.go b/collection.go
index 4625adc..b8355d2 100644
--- a/collection.go
+++ b/collection.go
@@ -180,7 +180,7 @@ func (c *Collection[T]) loadData() {
 	}
 }
 
-func (c *Collection[T]) onStore(collection string, id uint64, data []byte) {
+func (c *Collection[T]) onStore(id uint64, data []byte) {
 	item := decode[T](data)
 	old, ok := c.items.Get(id)
 	if !ok {
@@ -196,7 +196,7 @@ func (c *Collection[T]) onStore(collection string, id uint64, data []byte) {
 	}
 }
 
-func (c *Collection[T]) onDelete(collection string, id uint64) {
+func (c *Collection[T]) onDelete(id uint64) {
 	if item, ok := c.items.Get(id); ok {
 		for _, idx := range c.indices {
 			idx.delete(item)
diff --git a/database.go b/database.go
index c74addf..fbd9801 100644
--- a/database.go
+++ b/database.go
@@ -81,14 +81,14 @@ func (db *Database) Close() {
 func (db *Database) onStore(collection string, id uint64, data []byte) {
 	c, ok := db.collections[collection]
 	if ok {
-		c.onStore(collection, id, data)
+		c.onStore(id, data)
 	}
 }
 
 func (db *Database) onDelete(collection string, id uint64) {
 	c, ok := db.collections[collection]
 	if ok {
-		c.onDelete(collection, id)
+		c.onDelete(id)
 	}
 }
 
diff --git a/types.go b/types.go
index 9baa3eb..8d80416 100644
--- a/types.go
+++ b/types.go
@@ -23,6 +23,6 @@ type itemUniqueIndex[T any] interface {
 
 type dbCollection interface {
 	loadData()
-	onStore(string, uint64, []byte) // For WAL following.
-	onDelete(string, uint64)        // For WAL following.
+	onStore(uint64, []byte) // For WAL following.
+	onDelete(uint64)        // For WAL following.
 }