diff --git a/config.nix b/config.nix
index 0d6aca9..d58bac1 100644
--- a/config.nix
+++ b/config.nix
@@ -35,7 +35,10 @@ in {
     drivers = [ pkgs.hplipWithPlugin ];
   };
 
-  security.sudo.enable = true;
+  security.sudo = {
+    enable = true;
+    extraConfig = "Defaults pwfeedback";
+  };
 
   users.mutableUsers = false;
 
diff --git a/dot/xresources.nix b/dot/xresources.nix
index 958e9de..50572c5 100644
--- a/dot/xresources.nix
+++ b/dot/xresources.nix
@@ -1,13 +1,13 @@
 ''
-*XTerm.termName: xterm-256color
-*XTerm.vt100.locale: true
-*XTerm.vt100.saveLines: 4096
-*XTerm.vt100.geometry: 80x32
-*XTerm.vt100.reverseVideo: true
-*XTerm.vt100.faceName: Source Code Pro for Powerline:size=10:antialias=true
-*XTerm.vt100.font: 7x13
-*xterm*charClass: 33:48,35:48,37:48,43:48,45-47:48,64:48,95:48,126:48
-*XTerm.vt100.translations: #override \n\
+XTerm*termName: xterm-256color
+XTerm*locale: true
+XTerm*saveLines: 4096
+XTerm*geometry: 80x32
+XTerm*reverseVideo: true
+XTerm*faceName: Source Code Pro for Powerline:size=10:antialias=true
+XTerm*font: 7x13
+Xterm*charClass: 33:48,35:48,37:48,43:48,45-47:48,64:48,95:48,126:48
+XTerm*translations: #override \n\
   Ctrl Shift <Key>C: copy-selection(CLIPBOARD) \n\
   Ctrl Shift <Key>V: insert-selection(CLIPBOARD)
 ''