diff --git a/docs/api/screen.md b/docs/api/screen.md
index cf96c456ff8f..bb3aed2c4131 100644
--- a/docs/api/screen.md
+++ b/docs/api/screen.md
@@ -136,7 +136,7 @@ The DPI scale is performed relative to the display containing the DIP point.
 
 ### `screen.screenToDipRect(window, rect)` _Windows_
 
-* `window` [BrowserWindow](browser-window.md)
+* `window` [BrowserWindow](browser-window.md) | null
 * `rect` [Rectangle](structures/rectangle.md)
 
 Returns [`Rectangle`](structures/rectangle.md)
@@ -147,7 +147,7 @@ If `window` is null, scaling will be performed to the display nearest to `rect`.
 
 ### `screen.dipToScreenRect(window, rect)` _Windows_
 
-* `window` [BrowserWindow](browser-window.md)
+* `window` [BrowserWindow](browser-window.md) | null
 * `rect` [Rectangle](structures/rectangle.md)
 
 Returns [`Rectangle`](structures/rectangle.md)