diff --git a/pkgs/development/interpreters/ruby/ruby-1.8.7.nix b/pkgs/development/interpreters/ruby/ruby-1.8.7.nix
index 9f2945dfb768..d18b6ec9e097 100644
--- a/pkgs/development/interpreters/ruby/ruby-1.8.7.nix
+++ b/pkgs/development/interpreters/ruby/ruby-1.8.7.nix
@@ -2,7 +2,7 @@
 , zlib, zlibSupport ? true
 , openssl, opensslSupport ? true
 , gdbm, gdbmSupport ? true
-, ncurses, readline, cursesSupport ? false
+, ncurses, readline, cursesSupport ? true
 , groff, docSupport ? false
 , ruby_1_8_7, autoreconfHook, bison, useRailsExpress ? true
 }:
diff --git a/pkgs/development/interpreters/ruby/ruby-1.9.3.nix b/pkgs/development/interpreters/ruby/ruby-1.9.3.nix
index c812abc70fe5..3f79d3528cc6 100644
--- a/pkgs/development/interpreters/ruby/ruby-1.9.3.nix
+++ b/pkgs/development/interpreters/ruby/ruby-1.9.3.nix
@@ -2,7 +2,7 @@
 , zlib, zlibSupport ? true
 , openssl, opensslSupport ? true
 , gdbm, gdbmSupport ? true
-, ncurses, readline, cursesSupport ? false
+, ncurses, readline, cursesSupport ? true
 , groff, docSupport ? false
 , libyaml, yamlSupport ? true
 , ruby_1_9_3, autoreconfHook, bison, useRailsExpress ? true
diff --git a/pkgs/development/interpreters/ruby/ruby-2.0.0.nix b/pkgs/development/interpreters/ruby/ruby-2.0.0.nix
index ea8fcc327ee8..e508f3ecf67e 100644
--- a/pkgs/development/interpreters/ruby/ruby-2.0.0.nix
+++ b/pkgs/development/interpreters/ruby/ruby-2.0.0.nix
@@ -2,7 +2,7 @@
 , zlib, zlibSupport ? true
 , openssl, opensslSupport ? true
 , gdbm, gdbmSupport ? true
-, ncurses, readline, cursesSupport ? false
+, ncurses, readline, cursesSupport ? true
 , groff, docSupport ? false
 , libyaml, yamlSupport ? true
 , libffi, fiddleSupport ? true
diff --git a/pkgs/development/interpreters/ruby/ruby-2.1.0.nix b/pkgs/development/interpreters/ruby/ruby-2.1.0.nix
index 8467bc4eb38d..cfe121858c9d 100644
--- a/pkgs/development/interpreters/ruby/ruby-2.1.0.nix
+++ b/pkgs/development/interpreters/ruby/ruby-2.1.0.nix
@@ -2,7 +2,7 @@
 , zlib, zlibSupport ? true
 , openssl, opensslSupport ? true
 , gdbm, gdbmSupport ? true
-, ncurses, readline, cursesSupport ? false
+, ncurses, readline, cursesSupport ? true
 , groff, docSupport ? false
 , libyaml, yamlSupport ? true
 , libffi, fiddleSupport ? true
diff --git a/pkgs/development/interpreters/ruby/ruby-2.1.1.nix b/pkgs/development/interpreters/ruby/ruby-2.1.1.nix
index 6a53c2d93ea9..1c5679ac3f4a 100644
--- a/pkgs/development/interpreters/ruby/ruby-2.1.1.nix
+++ b/pkgs/development/interpreters/ruby/ruby-2.1.1.nix
@@ -2,7 +2,7 @@
 , zlib, zlibSupport ? true
 , openssl, opensslSupport ? true
 , gdbm, gdbmSupport ? true
-, ncurses, readline, cursesSupport ? false
+, ncurses, readline, cursesSupport ? true
 , groff, docSupport ? false
 , libyaml, yamlSupport ? true
 , libffi, fiddleSupport ? true
diff --git a/pkgs/development/interpreters/ruby/ruby-2.1.2.nix b/pkgs/development/interpreters/ruby/ruby-2.1.2.nix
index fe03b86d86db..54cabbe1be8c 100644
--- a/pkgs/development/interpreters/ruby/ruby-2.1.2.nix
+++ b/pkgs/development/interpreters/ruby/ruby-2.1.2.nix
@@ -2,7 +2,7 @@
 , zlib, zlibSupport ? true
 , openssl, opensslSupport ? true
 , gdbm, gdbmSupport ? true
-, ncurses, readline, cursesSupport ? false
+, ncurses, readline, cursesSupport ? true
 , groff, docSupport ? false
 , libyaml, yamlSupport ? true
 , libffi, fiddleSupport ? true
diff --git a/pkgs/development/interpreters/ruby/ruby-2.1.3.nix b/pkgs/development/interpreters/ruby/ruby-2.1.3.nix
index 9609a8758f98..ed78001d3f21 100644
--- a/pkgs/development/interpreters/ruby/ruby-2.1.3.nix
+++ b/pkgs/development/interpreters/ruby/ruby-2.1.3.nix
@@ -2,7 +2,7 @@
 , zlib, zlibSupport ? true
 , openssl, opensslSupport ? true
 , gdbm, gdbmSupport ? true
-, ncurses, readline, cursesSupport ? false
+, ncurses, readline, cursesSupport ? true
 , groff, docSupport ? false
 , libyaml, yamlSupport ? true
 , libffi, fiddleSupport ? true
diff --git a/pkgs/development/interpreters/ruby/ruby-2.2.0.nix b/pkgs/development/interpreters/ruby/ruby-2.2.0.nix
index 908d8a566b6f..516f30e96807 100644
--- a/pkgs/development/interpreters/ruby/ruby-2.2.0.nix
+++ b/pkgs/development/interpreters/ruby/ruby-2.2.0.nix
@@ -2,7 +2,7 @@
 , zlib, zlibSupport ? true
 , openssl, opensslSupport ? true
 , gdbm, gdbmSupport ? true
-, ncurses, readline, cursesSupport ? false
+, ncurses, readline, cursesSupport ? true
 , groff, docSupport ? false
 , libyaml, yamlSupport ? true
 , libffi, fiddleSupport ? true