diff --git a/Running-programs-natively-under-Wayland.md b/Running-programs-natively-under-Wayland.md
index 8434070..f79bd3d 100644
--- a/Running-programs-natively-under-Wayland.md
+++ b/Running-programs-natively-under-Wayland.md
@@ -16,7 +16,7 @@ QT_QPA_PLATFORM=wayland-egl
 ```
 Qt5 renders CSD (client-side decorations) under the wayland backend by default. To disable them, set the following.
 ```
-QT_DISABLE_WINDOWDECORATION=1
+QT_WAYLAND_DISABLE_WINDOWDECORATION=1
 ```
 
 ## Elementary/EFL