From 969c577173dc09bcd7af878107e733279f43171f Mon Sep 17 00:00:00 2001
From: Domen Kozar <domen@dev.si>
Date: Sun, 31 Mar 2013 21:18:51 +0200
Subject: [PATCH] fixes #127

---
 modules/services/networking/networkmanager.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/modules/services/networking/networkmanager.nix b/modules/services/networking/networkmanager.nix
index 74d9992f770d..21d276778378 100644
--- a/modules/services/networking/networkmanager.nix
+++ b/modules/services/networking/networkmanager.nix
@@ -77,6 +77,11 @@ in {
 
   config = mkIf cfg.enable {
 
+    assertions = [{
+      assertion = config.networking.wireless.enable == false;
+      message = "You can not use networking.networkmanager with services.networking.wireless";
+    }];
+
     environment.etc = [
       { source = ipUpScript;
         target = "NetworkManager/dispatcher.d/01nixos-ip-up";