diff --git a/Running-programs-natively-under-Wayland.md b/Running-programs-natively-under-Wayland.md
index 7f116ab..8e03335 100644
--- a/Running-programs-natively-under-Wayland.md
+++ b/Running-programs-natively-under-Wayland.md
@@ -7,6 +7,7 @@ You can disable Xwayland (X clients under Wayland) support by specifying `xwayla
 Wayland should be selected by default. If not, this can be overridden on a per-app basis by setting:
 
 ```
+# Do not set this globally
 GDK_BACKEND=wayland
 CLUTTER_BACKEND=wayland
 ```