diff --git a/themes/default.nix b/themes/default.nix
index 15cbe0eb..5c00a64f 100644
--- a/themes/default.nix
+++ b/themes/default.nix
@@ -1,18 +1,17 @@
 { config, lib, pkgs, ... }:
 
 {
-  environment = {
-    systemPackages = with pkgs; [
-      libsForQt5.qtstyleplugins
-      # qt5.qtbase  # make Qt 5 apps inherit GTK2 theme
-    ];
-
-    sessionVariables = {
-      QT_QPA_PLATFORMTHEME = "gtk2";
-      GTK_DATA_PREFIX = [ "${config.system.path}" ];
-      GTK2_RC_FILES = "$HOME/.config/gtk-2.0/gtkrc";
-    };
+  environment.variables = {
+    GTK_DATA_PREFIX = [ "${config.system.path}" ];
+    GTK2_RC_FILES = "$HOME/.config/gtk-2.0/gtkrc";
+    QT_QPA_PLATFORMTHEME = "gtk2";
   };
+
+  qt5 = {
+    style = "gtk2";
+    platformTheme = "gtk2";
+  };
+
   services.xserver.displayManager.sessionCommands = ''
     source "$XDG_CONFIG_HOME"/xsession/*.sh
     xrdb -merge "$XDG_CONFIG_HOME"/xtheme/*