diff --git a/pkgs/applications/networking/instant-messengers/bitlbee-otr/default.nix b/pkgs/applications/networking/instant-messengers/bitlbee-otr/default.nix
new file mode 100644
index 00000000000..0681c1db8b1
--- /dev/null
+++ b/pkgs/applications/networking/instant-messengers/bitlbee-otr/default.nix
@@ -0,0 +1,35 @@
+{ stdenv, fetchbzr, gnutls, glib, pkgconfig, libotr
+, libxslt, xmlto, docbook_xsl, docbook_xml_dtd_42, perl }:
+
+let revision = "369"; in
+stdenv.mkDerivation rec {
+  name = "bitlbee-otr-r${revision}";
+  src = fetchbzr {
+    url = "http://khjk.org/~pesco/bitlbee-otr";
+    sha256 = "0fb7987ec4a321e07f22690ed6617db9f377fdf4e65a531d8da28a950817074f";
+    inherit revision;
+  };
+
+  patchPhase = ''
+    sed -i "configure" -e "s|-f \$""{i}/lib/libotr.a|0 -eq 0|g ;
+                           s|otrprefix=\$""{i}|otrprefix=\"${libotr}\"|g";
+  '';
+
+  buildInputs = [ gnutls glib pkgconfig libotr
+    libxslt xmlto docbook_xsl docbook_xml_dtd_42 perl
+  ];
+
+  meta = {
+    description = ''BitlBee, an IRC to other chat networks gateway.'';
+
+    longDescription = ''
+      This unofficial version adds support for communication encryption
+      and authentication via the OTR (off-the-record) library.
+    '';
+
+    # See also http://bugs.bitlbee.org/bitlbee/ticket/115 .
+    homepage = http://khjk.org/bitlbee-otr/;
+
+    license = "GPL";
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index c329fb1690c..87886587453 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5854,6 +5854,12 @@ let
     inherit (gtkLibs) glib;
   };
 
+  bitlbeeOtr = import ../applications/networking/instant-messengers/bitlbee-otr {
+    inherit fetchbzr stdenv gnutls pkgconfig libotr
+      libxslt xmlto docbook_xsl docbook_xml_dtd_42 perl;
+    inherit (gtkLibs) glib;
+  };
+
   # commented out because it's using the new configuration style proposal which is unstable
   #biew = import ../applications/misc/biew {
   #  inherit lib stdenv fetchurl ncurses;