diff --git a/pkgs/development/libraries/cimg/default.nix b/pkgs/development/libraries/cimg/default.nix
index 049938e1f459..cd6791836506 100644
--- a/pkgs/development/libraries/cimg/default.nix
+++ b/pkgs/development/libraries/cimg/default.nix
@@ -21,6 +21,6 @@ stdenv.mkDerivation rec {
     homepage = http://cimg.sourceforge.net/;
     license = licenses.cecill-c;
     maintainers = [ maintainers.AndersonTorres ];
-    platforms = platforms.linux;
+    platforms = platforms.unix;
   };
 }
diff --git a/pkgs/development/libraries/qt-4.x/4.8/default.nix b/pkgs/development/libraries/qt-4.x/4.8/default.nix
index 06ff3fe66d40..a65cbeed3fd3 100644
--- a/pkgs/development/libraries/qt-4.x/4.8/default.nix
+++ b/pkgs/development/libraries/qt-4.x/4.8/default.nix
@@ -180,6 +180,6 @@ stdenv.mkDerivation rec {
     description = "A cross-platform application framework for C++";
     license     = licenses.lgpl21Plus; # or gpl3
     maintainers = with maintainers; [ lovek323 phreedom sander urkud ];
-    platforms   = platforms.linux;
+    platforms   = platforms.unix;
   };
 }
diff --git a/pkgs/tools/graphics/pdf2svg/default.nix b/pkgs/tools/graphics/pdf2svg/default.nix
index 826f1a56055e..10309d208d81 100644
--- a/pkgs/tools/graphics/pdf2svg/default.nix
+++ b/pkgs/tools/graphics/pdf2svg/default.nix
@@ -15,6 +15,6 @@ stdenv.mkDerivation {
     homepage = http://www.cityinthesky.co.uk/opensource/pdf2svg;
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.ianwookim ];
-    platforms = stdenv.lib.platforms.linux;
+    platforms = stdenv.lib.platforms.unix;
   };
 }