diff --git a/modules/misc/qt.nix b/modules/misc/qt.nix
index d11976831..314a4a2c5 100644
--- a/modules/misc/qt.nix
+++ b/modules/misc/qt.nix
@@ -38,7 +38,7 @@ in {
 
   options = {
     qt = {
-      enable = mkEnableOption "Qt 4, 5 and 6 configuration";
+      enable = mkEnableOption "Qt 5 and 6 configuration";
 
       platformTheme = mkOption {
         type = types.nullOr (types.enum [ "gtk" "gnome" "qtct" "kde" ]);
@@ -170,14 +170,5 @@ in {
 
     xsession.importedVariables = [ "QT_QPA_PLATFORMTHEME" ]
       ++ lib.optionals (cfg.style.name != null) [ "QT_STYLE_OVERRIDE" ];
-
-    # Enable GTK+ style for Qt4 in Gtk/GNOME.
-    # It doesn’t support the platform theme packages.
-    home.activation.useGtkThemeInQt4 =
-      mkIf (cfg.platformTheme == "gtk" || cfg.platformTheme == "gnome")
-      (hm.dag.entryAfter [ "writeBoundary" ] ''
-        $DRY_RUN_CMD ${pkgs.crudini}/bin/crudini $VERBOSE_ARG \
-          --set "${config.xdg.configHome}/Trolltech.conf" Qt style GTK+
-      '');
   };
 }