diff --git a/index.d.ts b/index.d.ts
index bfe2a7114..1a2eacf51 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -1718,7 +1718,7 @@ declare namespace cytoscape {
          * Get the element's plain JavaScript object representation.
          * http://js.cytoscape.org/#ele.json
          */
-        json(): string;
+        json(): Object;
 
         /**
          * Get the group string that defines the type of the element.