diff --git a/home/isabel/qt.nix b/home/isabel/qt.nix
index 87e379e3..6a8313ea 100644
--- a/home/isabel/qt.nix
+++ b/home/isabel/qt.nix
@@ -28,7 +28,7 @@ in
       QT_WAYLAND_DISABLE_WINDOWDECORATION = "1";
 
       # remain backwards compatible with qt5
-      DISABLE_QT5_COMPAT = "0";
+      DISABLE_QT5_COMPAT = "1";
 
       # tell calibre to use the dark theme
       CALIBRE_USE_DARK_PALETTE = "1";