diff --git a/pkgs/development/libraries/readline/builder.sh b/pkgs/development/libraries/readline/builder.sh
deleted file mode 100644
index 95a72f80b35..00000000000
--- a/pkgs/development/libraries/readline/builder.sh
+++ /dev/null
@@ -1,10 +0,0 @@
-set -x
-
-source $stdenv/setup
-
-tar xvfz $src
-cd readline-*
-./configure --prefix=$out --with-curses
-make
-make install
-#strip -S $out/lib/*/*.a
diff --git a/pkgs/development/libraries/readline/readline4.nix b/pkgs/development/libraries/readline/readline4.nix
index c2e589bfacc..e87f8199b79 100644
--- a/pkgs/development/libraries/readline/readline4.nix
+++ b/pkgs/development/libraries/readline/readline4.nix
@@ -6,6 +6,5 @@ stdenv.mkDerivation {
     url = http://nix.cs.uu.nl/dist/tarballs/readline-4.3.tar.gz;
     md5 = "f86f7cb717ab321fe15f1bbcb058c11e";
   };
-  inherit ncurses;
-  buildInputs = [ncurses];
+  propagatedBuildInputs = [ncurses];
 }
diff --git a/pkgs/development/libraries/readline/readline5.nix b/pkgs/development/libraries/readline/readline5.nix
index 000c98cbd33..59216eef05d 100644
--- a/pkgs/development/libraries/readline/readline5.nix
+++ b/pkgs/development/libraries/readline/readline5.nix
@@ -6,6 +6,5 @@ stdenv.mkDerivation {
     url = ftp://ftp.gnu.org/gnu/readline/readline-5.1.tar.gz;
     md5 = "7ee5a692db88b30ca48927a13fd60e46";
   };
-  inherit ncurses;
-  buildInputs = [ncurses];
+  propagatedBuildInputs = [ncurses];
 }