diff --git a/lib/maintainers.nix b/lib/maintainers.nix
index 89ab1f5c3cfe..dc97f7e456a9 100644
--- a/lib/maintainers.nix
+++ b/lib/maintainers.nix
@@ -27,6 +27,7 @@
   aycanirican = "Aycan iRiCAN <iricanaycan@gmail.com>";
   balajisivaraman = "Balaji Sivaraman<sivaraman.balaji@gmail.com>";
   bbenoist = "Baptist BENOIST <return_0@live.com>";
+  bcdarwin = "Ben Darwin <bcdarwin@gmail.com>";
   bdimcheff = "Brandon Dimcheff <brandon@dimcheff.com>";
   bennofs = "Benno Fünfstück <benno.fuenfstueck@gmail.com>";
   benley = "Benjamin Staffin <benley@gmail.com>";
diff --git a/pkgs/development/compilers/teyjus/default.nix b/pkgs/development/compilers/teyjus/default.nix
new file mode 100644
index 000000000000..b16b32a6a062
--- /dev/null
+++ b/pkgs/development/compilers/teyjus/default.nix
@@ -0,0 +1,28 @@
+{ stdenv, fetchurl, omake, ocaml, flex, bison }:
+
+stdenv.mkDerivation {
+  name = "teyjus-2.0b2";
+
+  src = fetchurl {
+    url = "https://teyjus.googlecode.com/files/teyjus-source-2.0-b2.tar.gz";
+    sha256 = "f589fb460d7095a6e674b7a6413772c41b98654c38602c3e8c477a976da99052";
+  };
+
+  patches = [ ./fix-lex-to-flex.patch ];
+
+  buildInputs = [ omake ocaml flex bison ];
+
+  buildPhase = "omake all";
+
+  checkPhase = "omake check";
+
+  installPhase = "mkdir -p $out/bin && cp tj* $out/bin";
+
+  meta = with stdenv.lib; {
+    description = "An efficient implementation of the Lambda Prolog language";
+    homepage = https://code.google.com/p/teyjus/;
+    license = stdenv.lib.licenses.gpl3;
+    maintainers = [ maintainers.bcdarwin ];
+    platforms = platforms.linux;
+  };
+}
diff --git a/pkgs/development/compilers/teyjus/fix-lex-to-flex.patch b/pkgs/development/compilers/teyjus/fix-lex-to-flex.patch
new file mode 100644
index 000000000000..d2da1d3facca
--- /dev/null
+++ b/pkgs/development/compilers/teyjus/fix-lex-to-flex.patch
@@ -0,0 +1,23 @@
+diff --git a/source/OMakefile b/source/OMakefile
+index 6b19d84..095b8b6 100644
+--- a/source/OMakefile
++++ b/source/OMakefile
+@@ -164,12 +164,17 @@ LNK_MAIN = $(FNT)/linkerfront
+ DEP_MAIN = $(FNT)/dependfront
+ 
+ ############################################################
++# Nixpkgs specific changes
++#
++
++LEX = flex
++
++############################################################
+ # Platform specific changes
+ #
+ 
+ if $(mem $(OSTYPE), Cygwin Win32)
+     YACC = bison -by
+-    LEX = flex
+     CFLAGS += -mno-cygwin
+     INC_C[] += $(INC)/byteswap $(INC)/search
+     export
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 85625d53860c..4b5927007f83 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4173,6 +4173,10 @@ let
 
   tbb = callPackage ../development/libraries/tbb { };
 
+  teyjus = callPackage ../development/compilers/teyjus {
+    omake = omake_rc1;
+  };
+
   tinycc = callPackage ../development/compilers/tinycc { };
 
   urweb = callPackage ../development/compilers/urweb { };