From 046e374c9958969462919d192872606bb9f0ed4a Mon Sep 17 00:00:00 2001
From: Florian Klink <flokli@flokli.de>
Date: Sat, 5 May 2018 00:11:10 +0200
Subject: [PATCH] virtualisation/qemu-vm.nix: use lib.optionalString

---
 nixos/modules/virtualisation/qemu-vm.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nixos/modules/virtualisation/qemu-vm.nix b/nixos/modules/virtualisation/qemu-vm.nix
index 66ff43c8547d..6acaf63c26a8 100644
--- a/nixos/modules/virtualisation/qemu-vm.nix
+++ b/nixos/modules/virtualisation/qemu-vm.nix
@@ -23,7 +23,7 @@ let
 
   cfg = config.virtualisation;
 
-  qemuGraphics = if cfg.graphics then "" else "-nographic";
+  qemuGraphics = lib.optionalString (!cfg.graphics) "-nographic";
   kernelConsole = if cfg.graphics then "" else "console=${qemuSerialDevice}";
   ttys = [ "tty1" "tty2" "tty3" "tty4" "tty5" "tty6" ];