diff --git a/pkgs/applications/version-management/git-and-tools/qgit/default.nix b/pkgs/applications/version-management/git-and-tools/qgit/default.nix
index 71abaa67dea..963f4dd295b 100644
--- a/pkgs/applications/version-management/git-and-tools/qgit/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/qgit/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation rec {
     license = "GPLv2";
     homepage = "http://digilander.libero.it/mcostalba/";
     description = "Graphical front-end to Git";
-    platforms = stdenv.lib.platforms.all;
+    inherit (qt.meta) platforms;
   };
   src = fetchurl
   {
diff --git a/pkgs/development/tools/build-managers/cmake/default.nix b/pkgs/development/tools/build-managers/cmake/default.nix
index 587b7dce220..cc5fce60e72 100644
--- a/pkgs/development/tools/build-managers/cmake/default.nix
+++ b/pkgs/development/tools/build-managers/cmake/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
   meta = {
     homepage = http://www.cmake.org/;
     description = "Cross-Platform Makefile Generator";
-    platforms = stdenv.lib.platforms.all;
+    platforms = if useQt4 then qt4.meta.platforms else stdenv.lib.platforms.all;
     maintainers = [ stdenv.lib.maintainers.urkud ];
   };
 }