diff --git a/pkgs/development/compilers/ocaml/ocaml-3.09.1.nix b/pkgs/development/compilers/ocaml/ocaml-3.09.1.nix
index e1d18f6b6ee..12e06720b96 100644
--- a/pkgs/development/compilers/ocaml/ocaml-3.09.1.nix
+++ b/pkgs/development/compilers/ocaml/ocaml-3.09.1.nix
@@ -1,4 +1,4 @@
-{stdenv, fetchurl, x11}:
+{stdenv, fetchurl, x11, ncurses}:
 
 stdenv.mkDerivation {
   name = "ocaml-3.09.1";
@@ -12,4 +12,5 @@ stdenv.mkDerivation {
   configureFlags = ["-no-tk" "-x11lib" x11];
   buildFlags = ["world" "bootstrap" "opt"];
   checkTarget = ["opt.opt"];
+  buildInputs = [x11  ncurses];
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 62273cef888..1f1fb0206a7 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -780,7 +780,7 @@ rec {
   };
 
   ocaml = import ../development/compilers/ocaml {
-    inherit fetchurl stdenv x11;
+    inherit fetchurl stdenv x11 ncurses;
   };
 
   ocaml3080 = import ../development/compilers/ocaml/ocaml-3.08.0.nix {