diff --git a/docs/api/browser-window.md b/docs/api/browser-window.md
index c133a49beda0..8b850b5c4388 100644
--- a/docs/api/browser-window.md
+++ b/docs/api/browser-window.md
@@ -885,7 +885,7 @@ The `flags` is an array that can include following `String`s:
 
 ### `win.showDefinitionForSelection()` _OS X_
 
-Shows pop-up dictionary that searches the selected word on the page.
+Same as `webContents.showDefinitionForSelection()`.
 
 ### `win.setIcon(icon)` _Windows_ _Linux_
 
diff --git a/docs/api/web-contents.md b/docs/api/web-contents.md
index b9ff9d7c4863..60c736e0041c 100644
--- a/docs/api/web-contents.md
+++ b/docs/api/web-contents.md
@@ -957,6 +957,10 @@ win.webContents.on('did-finish-load', () => {
 });
 ```
 
+### `webContents.showDefinitionForSelection()` _OS X_
+
+Shows pop-up dictionary that searches the selected word on the page.
+
 ## Instance Properties
 
 `WebContents` objects also have the following properties: