diff --git a/types/dom.d.ts b/types/dom.d.ts
index ab406a05b8..8ae4e45c60 100644
--- a/types/dom.d.ts
+++ b/types/dom.d.ts
@@ -27,3 +27,7 @@ interface Element {
   msRequestFullscreen(): Promise<void>;
   webkitRequestFullscreen(allowKeyboardInput?: number): Promise<void>;
 }
+
+interface CSSStyleDeclaration {
+  msTransform: string | null;
+}