diff --git a/demos/mindmap.html b/demos/mindmap.html
index 832af7238..bf6df524b 100644
--- a/demos/mindmap.html
+++ b/demos/mindmap.html
@@ -19,7 +19,7 @@
         mindmap
         root
             child1((Circle))
-                grandchild 1
+                grandchildren 1
                 grandchild 2
             child2(Round rectangle)
                 grandchild 3