diff --git a/docs/api/web-contents.md b/docs/api/web-contents.md
index 000c6b9a766b..672e9af16dd0 100644
--- a/docs/api/web-contents.md
+++ b/docs/api/web-contents.md
@@ -2389,7 +2389,7 @@ A [`WebFrameMain`](web-frame-main.md) property that represents the top frame of
 
 #### `contents.opener` _Readonly_
 
-A [`WebFrameMain`](web-frame-main.md) property that represents the frame that opened this WebContents, either
+A [`WebFrameMain | null`](web-frame-main.md) property that represents the frame that opened this WebContents, either
 with open(), or by navigating a link with a target attribute.
 
 [keyboardevent]: https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent