diff --git a/effect.h b/effect.h
index 8dbfa1e80..84b78d6a7 100644
--- a/effect.h
+++ b/effect.h
@@ -52,7 +52,7 @@ class effect {
 	uint16 active_sequence{ 0 };
 	card* active_handler{ nullptr };
 	uint16 status{ 0 };
-	std::vector<uint64> label;
+	std::vector<lua_Integer> label;
 	int32 label_object{ 0 };
 	int32 condition{ 0 };
 	int32 cost{ 0 };