diff --git a/pkgs/development/libraries/haskell/mtl/1.1.0.2.nix b/pkgs/development/libraries/haskell/mtl/1.1.0.2.nix
index b6185d5d5691..9152cf929652 100644
--- a/pkgs/development/libraries/haskell/mtl/1.1.0.2.nix
+++ b/pkgs/development/libraries/haskell/mtl/1.1.0.2.nix
@@ -10,6 +10,7 @@ cabal.mkDerivation (self: {
     description = "Monad transformer library";
     license = self.stdenv.lib.licenses.bsd3;
     platforms = self.ghc.meta.platforms;
+    hydraPlatforms = self.stdenv.lib.platforms.none;
     maintainers = [ self.stdenv.lib.maintainers.andres ];
   };
 })
diff --git a/pkgs/development/libraries/haskell/mtl/2.0.1.0.nix b/pkgs/development/libraries/haskell/mtl/2.0.1.0.nix
index d4f6505f357d..be9237626d33 100644
--- a/pkgs/development/libraries/haskell/mtl/2.0.1.0.nix
+++ b/pkgs/development/libraries/haskell/mtl/2.0.1.0.nix
@@ -11,6 +11,7 @@ cabal.mkDerivation (self: {
     description = "Monad classes, using functional dependencies";
     license = self.stdenv.lib.licenses.bsd3;
     platforms = self.ghc.meta.platforms;
+    hydraPlatforms = self.stdenv.lib.platforms.none;
     maintainers = [ self.stdenv.lib.maintainers.andres ];
   };
 })
diff --git a/pkgs/development/libraries/haskell/mtl/2.1.1.nix b/pkgs/development/libraries/haskell/mtl/2.1.1.nix
index ccc23775d946..56ca15987625 100644
--- a/pkgs/development/libraries/haskell/mtl/2.1.1.nix
+++ b/pkgs/development/libraries/haskell/mtl/2.1.1.nix
@@ -11,6 +11,7 @@ cabal.mkDerivation (self: {
     description = "Monad classes, using functional dependencies";
     license = self.stdenv.lib.licenses.bsd3;
     platforms = self.ghc.meta.platforms;
+    hydraPlatforms = self.stdenv.lib.platforms.none;
     maintainers = [ self.stdenv.lib.maintainers.andres ];
   };
 })
diff --git a/pkgs/development/libraries/haskell/mtl/2.1.2.nix b/pkgs/development/libraries/haskell/mtl/2.1.2.nix
index ab512d5713bf..2599342c33d8 100644
--- a/pkgs/development/libraries/haskell/mtl/2.1.2.nix
+++ b/pkgs/development/libraries/haskell/mtl/2.1.2.nix
@@ -12,6 +12,7 @@ cabal.mkDerivation (self: {
     description = "Monad classes, using functional dependencies";
     license = self.stdenv.lib.licenses.bsd3;
     platforms = self.ghc.meta.platforms;
+    hydraPlatforms = self.stdenv.lib.platforms.none;
     maintainers = [ self.stdenv.lib.maintainers.andres ];
   };
 })
diff --git a/pkgs/development/libraries/haskell/mtl/2.2.0.1.nix b/pkgs/development/libraries/haskell/mtl/2.2.0.1.nix
index 2864c9b1d2aa..6d62ebdb74de 100644
--- a/pkgs/development/libraries/haskell/mtl/2.2.0.1.nix
+++ b/pkgs/development/libraries/haskell/mtl/2.2.0.1.nix
@@ -12,6 +12,7 @@ cabal.mkDerivation (self: {
     description = "Monad classes, using functional dependencies";
     license = self.stdenv.lib.licenses.bsd3;
     platforms = self.ghc.meta.platforms;
+    hydraPlatforms = self.stdenv.lib.platforms.none;
     maintainers = [ self.stdenv.lib.maintainers.andres ];
   };
 })