diff --git a/content/docs/fossvr/envision/wmr_controllers_on_arch.md b/content/docs/fossvr/envision/wmr_controllers_on_arch.md
index 59167ed..cb063de 100644
--- a/content/docs/fossvr/envision/wmr_controllers_on_arch.md
+++ b/content/docs/fossvr/envision/wmr_controllers_on_arch.md
@@ -76,3 +76,9 @@ paru -S envision-xr-git
     ERROR [wmr_bt_controller_create] WMR Controller (Bluetooth): Failed to create controller
     ERROR [wmr_create_bt_controller] Failed to create WMR controller (Bluetooth)
     ```
+- If building the profile fails with the following error, you will need to [downgrade](https://aur.archlinux.org/packages/downgrade) CMake to a Version before 4.0.0:
+    ```
+    -- Including internal Sophus from submodule
+    CMake Error at thirdparty/basalt-headers/thirdparty/Sophus/CMakeLists.txt:1 (cmake_minimum_required):
+    Compatibility with CMake < 3.5 has been removed from CMake.
+    ```