diff --git a/pkgs/applications/editors/emacs-22/default.nix b/pkgs/applications/editors/emacs-22/default.nix
index 8b48aee43185..8905ab1c85a5 100644
--- a/pkgs/applications/editors/emacs-22/default.nix
+++ b/pkgs/applications/editors/emacs-22/default.nix
@@ -42,5 +42,7 @@ stdenv.mkDerivation rec {
 
     homepage = http://www.gnu.org/software/emacs/;
     license = "GPLv3+";
+
+    platforms = linux;  # GTK & co. are needed.
   };
 }
diff --git a/pkgs/applications/editors/emacs-23/default.nix b/pkgs/applications/editors/emacs-23/default.nix
index 1d806f76b8d5..23fd3e439969 100644
--- a/pkgs/applications/editors/emacs-23/default.nix
+++ b/pkgs/applications/editors/emacs-23/default.nix
@@ -67,5 +67,6 @@ stdenv.mkDerivation rec {
     license = "GPLv3+";
 
     maintainers = [ stdenv.lib.maintainers.ludo ];
+    platforms = linux;  # GTK & co. are needed.
   };
 }
diff --git a/pkgs/applications/editors/emacs-snapshot/default.nix b/pkgs/applications/editors/emacs-snapshot/default.nix
index 925dec7343cd..5d0181cf66ea 100644
--- a/pkgs/applications/editors/emacs-snapshot/default.nix
+++ b/pkgs/applications/editors/emacs-snapshot/default.nix
@@ -52,5 +52,7 @@ stdenv.mkDerivation {
     description = "GNU Emacs with Unicode, GTK and Xft support (23.x alpha)";
     homepage = http://www.emacswiki.org/cgi-bin/wiki/XftGnuEmacs;
     license = "GPLv3+";
+    maintainers = [ stdenv.lib.maintainers.ludo ];
+    platforms = linux;  # GTK & co. are needed.
   };
 }