diff --git a/doc/api/smalloc.markdown b/doc/api/smalloc.markdown
index ff905714e5ed21..f72857ff870dc8 100644
--- a/doc/api/smalloc.markdown
+++ b/doc/api/smalloc.markdown
@@ -44,7 +44,7 @@ possible options are listed in `smalloc.Types`. Example usage:
     var doubleArr = smalloc.alloc(3, smalloc.Types.Double);
 
     for (var i = 0; i < 3; i++)
-      doubleArr = i / 10;
+      doubleArr[i] = i / 10;
 
     // { '0': 0, '1': 0.1, '2': 0.2 }