diff --git a/pkgs/development/libraries/libdaemon/default.nix b/pkgs/development/libraries/libdaemon/default.nix
index f9666ccf4dd..58c150a22d6 100644
--- a/pkgs/development/libraries/libdaemon/default.nix
+++ b/pkgs/development/libraries/libdaemon/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
 
     license = "LGPLv2+";
 
-    platforms = stdenv.lib.platforms.gnu;  # arbitrary choice
+    hydraPlatforms = stdenv.lib.platforms.linux;
     maintainers = [ ];
   };
 }
diff --git a/pkgs/tools/graphics/graphviz/default.nix b/pkgs/tools/graphics/graphviz/default.nix
index 0ef70a197d6..171a6202e73 100644
--- a/pkgs/tools/graphics/graphviz/default.nix
+++ b/pkgs/tools/graphics/graphviz/default.nix
@@ -53,7 +53,7 @@ stdenv.mkDerivation rec {
       interfaces for other technical domains.
     '';
 
-    platforms = stdenv.lib.platforms.linux ++ stdenv.lib.platforms.darwin;
+    hydraPlatforms = stdenv.lib.platforms.linux ++ stdenv.lib.platforms.darwin;
     maintainers = with stdenv.lib.maintainers; [ simons bjornfor ];
   };
 }
diff --git a/pkgs/tools/misc/direnv/default.nix b/pkgs/tools/misc/direnv/default.nix
index 5588fe3d647..2850c35b720 100644
--- a/pkgs/tools/misc/direnv/default.nix
+++ b/pkgs/tools/misc/direnv/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
     '';
     homepage = http://direnv.net;
     license = stdenv.lib.licenses.mit;
-    platforms = stdenv.lib.platforms.all;
+    hydraPlatforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.zimbatm ];
   };
 }