diff --git a/types/cosmiconfig/index.d.ts b/types/cosmiconfig/index.d.ts
index ffbd2e4e3c..824a555b6b 100644
--- a/types/cosmiconfig/index.d.ts
+++ b/types/cosmiconfig/index.d.ts
@@ -1,3 +1,8 @@
+// Type definitions for cosmiconfig 4.0.0
+// Project: https://github.com/davidtheclark/cosmiconfig
+// Definitions by: ozum <https://github.com/ozum>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
 type Options = {
     packageProp?: string | false;
     rc?: string | false;