diff --git a/docs/src/release-notes-csharp.md b/docs/src/release-notes-csharp.md
index 7e157a2ed7..8d9960e1c7 100644
--- a/docs/src/release-notes-csharp.md
+++ b/docs/src/release-notes-csharp.md
@@ -8,7 +8,7 @@ toc_max_heading_level: 2
 
 ### Highlights
 
-* New option `maskColor` for methods [`method: Page.screenshot`] and [`method: Locator.screenshot`] to change default masking color.
+* New option `MaskColor` for methods [`method: Page.screenshot`] and [`method: Locator.screenshot`] to change default masking color.
 
 * New `uninstall` CLI command to uninstall browser binaries:
   ```bash
diff --git a/docs/src/release-notes-python.md b/docs/src/release-notes-python.md
index e9a9e34b13..dda4a70000 100644
--- a/docs/src/release-notes-python.md
+++ b/docs/src/release-notes-python.md
@@ -8,7 +8,7 @@ toc_max_heading_level: 2
 
 ### Highlights
 
-* New option `maskColor` for methods [`method: Page.screenshot`] and [`method: Locator.screenshot`] to change default masking color.
+* New option `mask_color` for methods [`method: Page.screenshot`] and [`method: Locator.screenshot`] to change default masking color.
 
 * New `uninstall` CLI command to uninstall browser binaries:
   ```bash