diff --git a/test/examples/arena.exs b/test/examples/arena.exs
index f2f619c..ccb0826 100644
--- a/test/examples/arena.exs
+++ b/test/examples/arena.exs
@@ -11,8 +11,10 @@ defmodule Examples.Arena do
       require Orb.Memory
       page_offset = Orb.Memory.pages(unquote(opts[:pages]))
 
+      module_name = Module.concat(__MODULE__, unquote(name))
+
       offset_global_name =
-        String.to_atom("#{Macro.inspect_atom(:literal, unquote(name))}.bump_offset")
+        String.to_atom("#{Macro.inspect_atom(:literal, module_name)}.bump_offset")
 
       global(
         do: [
@@ -33,8 +35,6 @@ defmodule Examples.Arena do
       #   end
       # end
 
-      module_name = Module.concat(__MODULE__, unquote(name))
-
       Module.create(module_name, quote do
         use Orb
 
diff --git a/test/examples/arena_test.exs b/test/examples/arena_test.exs
index 431db6d..6a9dd33 100644
--- a/test/examples/arena_test.exs
+++ b/test/examples/arena_test.exs
@@ -15,7 +15,7 @@ defmodule Examples.ArenaTest do
 
     Orb.include(A.First)
 
-    defw test() do
+    defw test(), I32 do
       A.First.alloc(16)
     end
   end
@@ -24,12 +24,12 @@ defmodule Examples.ArenaTest do
     assert ~S"""
            (module $A
              (memory (export "memory") 5)
-             (global $First.bump_offset (mut i32) (i32.const 0))
-             (global $Second.bump_offset (mut i32) (i32.const 131072))
+             (global $Examples.ArenaTest.A.First.bump_offset (mut i32) (i32.const 0))
+             (global $Examples.ArenaTest.A.Second.bump_offset (mut i32) (i32.const 131072))
              (func $Examples.ArenaTest.A.First.alloc (param $byte_count i32) (result i32)
                (i32.const 0)
              )
-             (func $test (export "test")
+             (func $test (export "test") (result i32)
                (call $Examples.ArenaTest.A.First.alloc (i32.const 16))
              )
            )