diff --git a/type-definitions/immutable.d.ts b/type-definitions/immutable.d.ts
index 5dcee7987..4a77d9044 100644
--- a/type-definitions/immutable.d.ts
+++ b/type-definitions/immutable.d.ts
@@ -759,7 +759,9 @@ declare namespace Immutable {
    * but since Immutable Map keys can be of any type the argument to `get()` is
    * not altered.
    */
-  function Map<V>(obj: V): Map<keyof V, V[keyof V]>;
+  function Map<V>(obj: V): (V extends Map<unknown, unknown>
+    ? V
+    : Map<keyof V, V[keyof V]>);
 
   interface Map<K, V> extends Collection.Keyed<K, V> {
     /**