diff --git a/pkgs/development/libraries/librdf/redland.nix b/pkgs/development/libraries/librdf/redland.nix
index 25e5492ef71a..9420a6a203ab 100644
--- a/pkgs/development/libraries/librdf/redland.nix
+++ b/pkgs/development/libraries/librdf/redland.nix
@@ -60,7 +60,7 @@ stdenv.mkDerivation rec {
   ];
 
   # Fix broken DT_NEEDED in lib/redland/librdf_storage_sqlite.so.
-  NIX_CFLAGS_LINK = "-lraptor2";
+  env.NIX_CFLAGS_LINK = "-lraptor2";
 
   doCheck = false; # fails 1 out of 17 tests with a segmentation fault