diff --git a/README.md b/README.md
index 83ef129..4fc8f0f 100644
--- a/README.md
+++ b/README.md
@@ -72,7 +72,7 @@ static getFromTypeIndex(webId: string, rdfClass: string, fetch: any, isPrivate:
 
 **Returns:**
 
-Promise&lt;string\[\]&gt;
+Promise&lt;{ instances: string\[\] }&gt;