diff --git a/README.md b/README.md
index c538035c..11f323c1 100644
--- a/README.md
+++ b/README.md
@@ -308,7 +308,6 @@ the Wine prefix. Removing the option will revert to the previous behavior.
 | `hidenvgpu`           | `PROTON_HIDE_NVIDIA_GPU`           | Force Nvidia GPUs to always be reported as AMD GPUs. Some games require this if they depend on Windows-only Nvidia driver functionality. See also DXVK's nvapiHack config, which only affects reporting from Direct3D. |
 |                       | `WINE_FULLSCREEN_INTEGER_SCALING`  | Enable integer scaling mode, to give sharp pixels when upscaling. |
 | `cmdlineappend:`      |                                    | Append the string after the colon as an argument to the game command. May be specified more than once. Escape commas and backslashes with a backslash. |
-| `nowritewatch`        | `PROTON_NO_WRITE_WATCH`            | Disable support for memory write watches in ntdll. This is a very dangerous hack and should only be applied if you have verified that the game can operate without write watches. This improves performance for some very specific games (e.g. CoreRT-based games). |
 | `nosteamffmpeg`       | `PROTON_NO_STEAM_FFMPEG`           | Ignore ffmpeg that ships with Steam. Some videos may not play. |
 | `seccomp`             | `PROTON_USE_SECCOMP`               | **Note: Obsoleted in Proton 5.13.** In older versions, enable seccomp-bpf filter to emulate native syscalls, required for some DRM protections to work. |
 | `d9vk`                | `PROTON_USE_D9VK`                  | **Note: Obsoleted in Proton 5.0.** In older versions, use Vulkan-based DXVK instead of OpenGL-based wined3d for d3d9. |
diff --git a/proton b/proton
index f3e24c94..e94fde0b 100755
--- a/proton
+++ b/proton
@@ -1332,7 +1332,6 @@ class Session:
         self.check_environment("PROTON_NO_FSYNC", "nofsync")
         self.check_environment("PROTON_FORCE_LARGE_ADDRESS_AWARE", "forcelgadd")
         self.check_environment("PROTON_OLD_GL_STRING", "oldglstr")
-        self.check_environment("PROTON_NO_WRITE_WATCH", "nowritewatch")
         self.check_environment("PROTON_HIDE_NVIDIA_GPU", "hidenvgpu")
         self.check_environment("PROTON_HIDE_VANGOGH_GPU", "hidevggpu")
         self.check_environment("PROTON_SET_GAME_DRIVE", "gamedrive")
@@ -1357,9 +1356,6 @@ class Session:
         else:
             self.env["WINEFSYNC"] = "1"
 
-        if "nowritewatch" in self.compat_config:
-            self.env["WINE_DISABLE_WRITE_WATCH"] = "1"
-
         if "oldglstr" in self.compat_config:
             #mesa override
             self.env["MESA_EXTENSION_MAX_YEAR"] = "2003"