diff --git a/pkgs/applications/display-managers/lightdm-mini-greeter/default.nix b/pkgs/applications/display-managers/lightdm-mini-greeter/default.nix
index 69635718e3ba..ad2ac58a8b6e 100644
--- a/pkgs/applications/display-managers/lightdm-mini-greeter/default.nix
+++ b/pkgs/applications/display-managers/lightdm-mini-greeter/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, autoreconfHook, pkgconfig, lightdm, gtk3 }:
+{ stdenv, linkFarm, lightdm-mini-greeter, fetchFromGitHub, autoreconfHook, pkgconfig, lightdm, gtk3, glib, gdk-pixbuf, wrapGAppsHook, librsvg }:
 
 stdenv.mkDerivation rec {
   pname = "lightdm-mini-greeter";
@@ -11,11 +11,11 @@ stdenv.mkDerivation rec {
     sha256 = "1qi0bsqi8z2zv3303ww0kd7bciz6qx8na5bkvgrqlwyvq31czai5";
   };
 
-  nativeBuildInputs = [ autoreconfHook pkgconfig ];
-  buildInputs = [ lightdm gtk3 ];
+  nativeBuildInputs = [ autoreconfHook pkgconfig wrapGAppsHook ];
+  buildInputs = [ lightdm gtk3 glib gdk-pixbuf librsvg ];
 
   configureFlags = [ "--sysconfdir=/etc" ];
-  makeFlags = [ "configdir=$(out)/etc" ];
+  makeFlags = [ "configdir=${placeholder "out"}/etc" ];
 
   postInstall = ''
     substituteInPlace "$out/share/xgreeters/lightdm-mini-greeter.desktop" \
diff --git a/pkgs/applications/display-managers/lightdm/gtk-greeter.nix b/pkgs/applications/display-managers/lightdm/gtk-greeter.nix
index 0a49fa8c739e..5b1490a6b3be 100644
--- a/pkgs/applications/display-managers/lightdm/gtk-greeter.nix
+++ b/pkgs/applications/display-managers/lightdm/gtk-greeter.nix
@@ -55,7 +55,7 @@ stdenv.mkDerivation rec {
 
   postInstall = ''
     substituteInPlace "$out/share/xgreeters/lightdm-gtk-greeter.desktop" \
-      --replace "Exec=lightdm-gtk-greeter" "Exec=$out/sbin/lightdm-gtk-greeter"
+      --replace "Exec=lightdm-gtk-greeter" "Exec=$out/bin/lightdm-gtk-greeter"
   '';
 
   passthru.xgreeters = linkFarm "lightdm-gtk-greeter-xgreeters" [{