diff --git a/pkgs/tools/graphics/gnuplot/default.nix b/pkgs/tools/graphics/gnuplot/default.nix
index b77c795c2de..0ff18685ef9 100644
--- a/pkgs/tools/graphics/gnuplot/default.nix
+++ b/pkgs/tools/graphics/gnuplot/default.nix
@@ -4,6 +4,7 @@
 , libXpm ? null
 , libXaw ? null
 , x11Support ? false
+, readline
 }:
 
 assert x11Support -> ((libX11 != null) && 
@@ -24,6 +25,6 @@ stdenv.mkDerivation {
 
   configureFlags = if x11Support then ["--with-x"] else ["--without-x"];
 
-  buildInputs = [zlib gd texinfo] ++
+  buildInputs = [zlib gd texinfo readline] ++
     (if x11Support then [libX11 libXt libXpm libXaw] else []);
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 2c3936c0257..c4a43474e7c 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -764,11 +764,11 @@ let
   };
 
   gnuplot = import ../tools/graphics/gnuplot {
-    inherit fetchurl stdenv zlib gd texinfo;
+    inherit fetchurl stdenv zlib gd texinfo readline;
   };
 
   gnuplotX = import ../tools/graphics/gnuplot {
-    inherit fetchurl stdenv zlib gd texinfo;
+    inherit fetchurl stdenv zlib gd texinfo readline;
     inherit (xlibs) libX11 libXt libXaw libXpm;
     x11Support = true;
   };