diff --git a/vm/old_space.hpp b/vm/old_space.hpp
index 410c87f6b1..fff98e9343 100644
--- a/vm/old_space.hpp
+++ b/vm/old_space.hpp
@@ -10,7 +10,7 @@ struct old_space : zone {
 	old_space(cell size_, cell start_);
 	~old_space();
 
-	cell old_space::first_object_in_card(cell card_index);
+	cell first_object_in_card(cell card_index);
 	cell find_object_containing_card(cell card_index);
 	void record_object_start_offset(object *obj);
 	object *allot(cell size);