diff --git a/pkgs/development/libraries/haskell/language-haskell-extract/default.nix b/pkgs/development/libraries/haskell/language-haskell-extract/default.nix
index a5e3d00dda5..d0ecb017dba 100644
--- a/pkgs/development/libraries/haskell/language-haskell-extract/default.nix
+++ b/pkgs/development/libraries/haskell/language-haskell-extract/default.nix
@@ -9,6 +9,7 @@ cabal.mkDerivation (self: {
     homepage = "http://github.com/finnsson/template-helper";
     description = "Module to automatically extract functions from the local code";
     license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
     maintainers = [
       self.stdenv.lib.maintainers.andres
       self.stdenv.lib.maintainers.simons
diff --git a/pkgs/development/libraries/haskell/test-framework-th/default.nix b/pkgs/development/libraries/haskell/test-framework-th/default.nix
index df4ca3ff15e..0c16a9e9e24 100644
--- a/pkgs/development/libraries/haskell/test-framework-th/default.nix
+++ b/pkgs/development/libraries/haskell/test-framework-th/default.nix
@@ -13,6 +13,7 @@ cabal.mkDerivation (self: {
     homepage = "http://github.com/finnsson/test-generator";
     description = "Automagically generate the HUnit- and Quickcheck-bulk-code using Template Haskell";
     license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
     maintainers = [
       self.stdenv.lib.maintainers.andres
       self.stdenv.lib.maintainers.simons