diff --git a/src/main/asciidoc/reference/mongodb.adoc b/src/main/asciidoc/reference/mongodb.adoc
index a2ac66d1f..11ad9e0a8 100644
--- a/src/main/asciidoc/reference/mongodb.adoc
+++ b/src/main/asciidoc/reference/mongodb.adoc
@@ -2518,14 +2518,14 @@ The following listing shows the `IndexOperations` interface:
 ----
 public interface IndexOperations {
 
-  void ensureIndex(IndexDefinition indexDefinition);
+  String ensureIndex(IndexDefinition indexDefinition);
+
+  void alterIndex(String name, IndexOptions options);
 
   void dropIndex(String name);
 
   void dropAllIndexes();
 
-  void resetIndexCache();
-
   List<IndexInfo> getIndexInfo();
 }
 ----