diff --git a/pkgs/development/libraries/phonon-backend-gstreamer/default.nix b/pkgs/development/libraries/phonon-backend-gstreamer/default.nix
index 20e3d97b228f..17744bad32c5 100644
--- a/pkgs/development/libraries/phonon-backend-gstreamer/default.nix
+++ b/pkgs/development/libraries/phonon-backend-gstreamer/default.nix
@@ -18,5 +18,6 @@ stdenv.mkDerivation rec {
   meta = {
     homepage = http://phonon.kde.org/;
     description = "GStreamer backend for Phonon";
+    platforms = stdenv.lib.platforms.linux;
   };  
 }
diff --git a/pkgs/development/libraries/phonon/default.nix b/pkgs/development/libraries/phonon/default.nix
index edcccb7bf0ce..6cf63aa757ac 100644
--- a/pkgs/development/libraries/phonon/default.nix
+++ b/pkgs/development/libraries/phonon/default.nix
@@ -22,5 +22,6 @@ stdenv.mkDerivation rec {
     homepage = http://phonon.kde.org/;
     description = "Multimedia API for Qt";
     license = "LGPLv2";
+    platforms = stdenv.lib.platforms.linux;
   };  
 }