diff --git a/docs/api/reactivity-core.md b/docs/api/reactivity-core.md
index c8c80ad..f574631 100644
--- a/docs/api/reactivity-core.md
+++ b/docs/api/reactivity-core.md
@@ -155,7 +155,7 @@ Maps each index in a table source to an object.
 
     local items = source {} :: () -> Array<Item>
 
-    local displays = indexes(numbers, function(item, i)
+    local displays = indexes(items, function(item, i)
         return ItemDisplay {
             Name = function()
                 return item().name