diff --git a/README.md b/README.md
index ab01c1e..ca3bcc7 100644
--- a/README.md
+++ b/README.md
@@ -647,9 +647,12 @@ let mut cache = FirestoreCache::new(
     &db,
     FirestoreMemoryCacheBackend::new(
         FirestoreCacheConfiguration::new().add_collection_config(
-            TEST_COLLECTION_NAME,
-            FirestoreListenerTarget::new(1000),
-            FirestoreCacheCollectionLoadMode::PreloadNone,
+            &db,
+            FirestoreCacheCollectionConfiguration::new(
+              TEST_COLLECTION_NAME,
+              FirestoreListenerTarget::new(1000),
+              FirestoreCacheCollectionLoadMode::PreloadNone,
+            )
         ),
     )?,
     FirestoreMemListenStateStorage::new(),