diff --git a/compiler/utils/assembler_test.h b/compiler/utils/assembler_test.h
index 227954e..11a9b91 100644
--- a/compiler/utils/assembler_test.h
+++ b/compiler/utils/assembler_test.h
@@ -741,8 +741,8 @@
   }
 
   // Override this to set up any architecture-specific things, e.g., CPU revision.
-  virtual Ass* CreateAssembler(ArenaAllocator* arena) {
-    return new (arena) Ass(arena);
+  virtual Ass* CreateAssembler(ArenaAllocator* allocator) {
+    return new (allocator) Ass(allocator);
   }
 
   // Override this to set up any architecture-specific things, e.g., register vectors.