diff --git a/cli/types/cypress.d.ts b/cli/types/cypress.d.ts
index b795ae1ea924..a1f357ea4a53 100644
--- a/cli/types/cypress.d.ts
+++ b/cli/types/cypress.d.ts
@@ -108,7 +108,7 @@ declare namespace Cypress {
   }
 
   /**
-   * The interface for user-defined properties in Window object.
+   * The interface for user-defined properties in Window object under test.
    */
   interface ApplicationWindow {} // tslint:disable-line