diff --git a/test/tests.luau b/test/tests.luau
index f3ad794..b0e7e67 100644
--- a/test/tests.luau
+++ b/test/tests.luau
@@ -1174,7 +1174,7 @@ TEST("indexes()", wrap_root(function()
 
         local updated = table.create(100, 0)
 
-        local elements = indexes(items, function(item)
+        indexes(items, function(item)
             effect(function()
                 item()
                 updated[1] += 1    
@@ -1184,6 +1184,8 @@ TEST("indexes()", wrap_root(function()
                 item()
                 updated[2] += 1    
             end)
+
+            return {}
         end)
 
         effect(function()
diff --git a/todo.md b/todo.md
index 933d2b5..bac72b2 100644
--- a/todo.md
+++ b/todo.md
@@ -13,3 +13,4 @@
 - define behavior of deriving a source within a derived source
 - review destruction of node under a root that has a child in another root
 - check in strict mode for forgetting to call constructor `create(class)`
+- improve crash course, some sections feel like information dumps