diff --git a/docs/src/api/class-page.md b/docs/src/api/class-page.md
index 172de5a8af..308ffbc1c2 100644
--- a/docs/src/api/class-page.md
+++ b/docs/src/api/class-page.md
@@ -1994,7 +1994,6 @@ The page's main frame. Page is guaranteed to have a main frame which persists du
 - type: <[Mouse]>
 
 ## async method: Page.opener
-* langs: python, java, js
 - returns: <[null]|[Page]>
 
 Returns the opener for popup pages and `null` for others. If the opener has been closed already the returns `null`.
diff --git a/docs/src/api/csharp.md b/docs/src/api/csharp.md
index 146f0aab68..1628958f42 100644
--- a/docs/src/api/csharp.md
+++ b/docs/src/api/csharp.md
@@ -21,9 +21,3 @@ Optional Json options that control custom behaviour when parsing the JSON.
 
 ### param: Page.selectOption.values = %%-csharp-select-options-values-%%
 ### param: Page.setInputFiles.files = %%-csharp-input-files-%%
-
-## method: Page.opener
-* langs: csharp
-- returns: <[null]|[Page]>
-
-Returns the opener for popup pages and `null` for others. If the opener has been closed already the returns `null`.