diff --git a/src/entrypoints/map-constructor.d.ts b/src/entrypoints/map-constructor.d.ts
index 8196219..d36eceb 100644
--- a/src/entrypoints/map-constructor.d.ts
+++ b/src/entrypoints/map-constructor.d.ts
@@ -1,3 +1,3 @@
 interface MapConstructor {
-  new (): Map<unknown, unknown>;
+  new <K = unknown, V = unknown>(): Map<K, V>;
 }