diff --git a/pkgs/by-name/cu/cura5/package.nix b/pkgs/by-name/cu/cura5/package.nix
index dec9561..c0eee97 100644
--- a/pkgs/by-name/cu/cura5/package.nix
+++ b/pkgs/by-name/cu/cura5/package.nix
@@ -33,7 +33,7 @@ let
       fi
       args+=("$a")
     done
-    exec "${cura5}/bin/cura5" "''${args[@]}"
+    QT_QPA_PLATFORM=xcb exec "${cura5}/bin/cura5" "''${args[@]}"
   '';
 in
 stdenv.mkDerivation rec {