diff --git a/pkgs/development/erlang-modules/default.nix b/pkgs/development/erlang-modules/default.nix
index d941353f202..53d54a77a60 100644
--- a/pkgs/development/erlang-modules/default.nix
+++ b/pkgs/development/erlang-modules/default.nix
@@ -1,19 +1,10 @@
 { pkgs }: #? import <nixpkgs> {} }:
 
 let
-
   self = rec {
-    callPackage = pkgs.lib.callPackageWith (pkgs // self);
-
+    hex = import ./hex-packages.nix { callPackage = self.callPackage; };
+    callPackage = pkgs.lib.callPackageWith (pkgs // self // hex);
     buildErlang = callPackage ./build-erlang.nix {};
     buildHex = callPackage ./build-hex.nix {};
-
-    rebar3-pc = callPackage ./hex/rebar3-pc.nix {};
-    esqlite = callPackage ./hex/esqlite.nix {};
-    goldrush = callPackage ./hex/goldrush.nix {};
-    ibrowse = callPackage ./hex/ibrowse.nix {};
-    jiffy = callPackage ./hex/jiffy.nix {};
-    lager = callPackage ./hex/lager.nix {};
-    meck = callPackage ./hex/meck.nix {};
   };
-in self
+in self // self.hex
diff --git a/pkgs/development/erlang-modules/hex-packages.nix b/pkgs/development/erlang-modules/hex-packages.nix
new file mode 100644
index 00000000000..fe260f015aa
--- /dev/null
+++ b/pkgs/development/erlang-modules/hex-packages.nix
@@ -0,0 +1,73 @@
+/* hex.nix is an auto-generated file -- DO NOT EDIT! */
+{ callPackage }:
+
+let
+  self = rec {
+
+  esqlite = callPackage
+    ({ buildHex, rebar3-pc }:
+     buildHex {
+       name = "esqlite";
+       version = "0.2.1";
+       sha256 = "1296fn1lz4lz4zqzn4dwc3flgkh0i6n4sydg501faabfbv8d3wkr";
+       compilePort = true;
+    }) {};
+
+  ibrowse = callPackage
+    ({ buildHex, meck }:
+      buildHex {
+        name = "ibrowse";
+        version = "4.2.2";
+        sha256 = "1bn0645n95j5zypdsns1w4kgd3q9lz8fj898hg355j5w89scn05q";
+        erlangDeps = [ meck ];
+    }) {};
+
+  meck = callPackage
+    ({ stdenv, buildHex }:
+     buildHex {
+       name = "meck";
+       version = "0.8.3";
+       sha256 = "1dh2rhks1xly4f49x89vbhsk8fgwkx5zqp0n98mnng8rs1rkigak";
+
+       meta = {
+         description = "A mocking framework for Erlang";
+         homepage = "https://github.com/eproxus/meck";
+         license = stdenv.lib.licenses.apsl20;
+      };
+    }) {};
+
+  goldrush = callPackage
+    ({ buildHex, fetchurl }:
+     buildHex {
+       name = "goldrush";
+       version = "0.1.7";
+       sha256 = "1zjgbarclhh10cpgvfxikn9p2ay63rajq96q1sbz9r9w6v6p8jm9";
+    }) {};
+
+  jiffy = callPackage
+    ({ buildHex }:
+     buildHex {
+       name = "jiffy";
+       version = "0.14.5";
+       hexPkg = "barrel_jiffy";
+       sha256 = "0iqz8bp0f672c5rfy5dpw9agv2708wzldd00ngbsffglpinlr1wa";
+     }) {};
+
+  lager = callPackage
+    ({ buildHex, goldrush }:
+     buildHex {
+       name = "lager";
+       version = "3.0.2";
+       sha256 = "0051zj6wfmmvxjn9q0nw8wic13nhbrkyy50cg1lcpdh17qiknzsj";
+       erlangDeps = [ goldrush ];
+    }) {};
+
+  rebar3-pc = callPackage
+    ({ buildHex, goldrush }:
+     buildHex {
+       name = "pc";
+       version = "1.1.0";
+       sha256 = "1br5xfl4b2z70b6a2ccxppn64jvkqgpmy4y9v81kxzb91z0ss9ma";
+    }) {};
+  };
+in self
diff --git a/pkgs/development/erlang-modules/hex/esqlite.nix b/pkgs/development/erlang-modules/hex/esqlite.nix
deleted file mode 100644
index 1fc3a2e91dc..00000000000
--- a/pkgs/development/erlang-modules/hex/esqlite.nix
+++ /dev/null
@@ -1,8 +0,0 @@
-{ buildHex, rebar3-pc }:
-
-buildHex {
-  name = "esqlite";
-  version = "0.2.1";
-  sha256 = "1296fn1lz4lz4zqzn4dwc3flgkh0i6n4sydg501faabfbv8d3wkr";
-  compilePorts = true;
-}
diff --git a/pkgs/development/erlang-modules/hex/goldrush.nix b/pkgs/development/erlang-modules/hex/goldrush.nix
deleted file mode 100644
index ddff7f6cc56..00000000000
--- a/pkgs/development/erlang-modules/hex/goldrush.nix
+++ /dev/null
@@ -1,7 +0,0 @@
-{ buildHex, fetchurl }:
-
-buildHex {
-  name = "goldrush";
-  version = "0.1.7";
-  sha256 = "1zjgbarclhh10cpgvfxikn9p2ay63rajq96q1sbz9r9w6v6p8jm9";
-}
diff --git a/pkgs/development/erlang-modules/hex/ibrowse.nix b/pkgs/development/erlang-modules/hex/ibrowse.nix
deleted file mode 100644
index 6ed189eb39d..00000000000
--- a/pkgs/development/erlang-modules/hex/ibrowse.nix
+++ /dev/null
@@ -1,8 +0,0 @@
-{ buildHex }:
-
-buildHex {
-  name = "ibrowse";
-  version = "4.2.2";
-  sha256 = "1bn0645n95j5zypdsns1w4kgd3q9lz8fj898hg355j5w89scn05q";
-}
-
diff --git a/pkgs/development/erlang-modules/hex/jiffy.nix b/pkgs/development/erlang-modules/hex/jiffy.nix
deleted file mode 100644
index b9f92c888a4..00000000000
--- a/pkgs/development/erlang-modules/hex/jiffy.nix
+++ /dev/null
@@ -1,8 +0,0 @@
-{ buildHex }:
-
-buildHex {
-  name = "jiffy";
-  version = "0.14.5";
-  hexPkg = "barrel_jiffy";
-  sha256 = "0iqz8bp0f672c5rfy5dpw9agv2708wzldd00ngbsffglpinlr1wa";
-}
diff --git a/pkgs/development/erlang-modules/hex/lager.nix b/pkgs/development/erlang-modules/hex/lager.nix
deleted file mode 100644
index acfefd5757c..00000000000
--- a/pkgs/development/erlang-modules/hex/lager.nix
+++ /dev/null
@@ -1,8 +0,0 @@
-{ buildHex, goldrush }:
-
-buildHex {
-  name = "lager";
-  version = "3.0.2";
-  sha256 = "0051zj6wfmmvxjn9q0nw8wic13nhbrkyy50cg1lcpdh17qiknzsj";
-  erlangDeps = [ goldrush ];
-}
diff --git a/pkgs/development/erlang-modules/hex/meck.nix b/pkgs/development/erlang-modules/hex/meck.nix
deleted file mode 100644
index 5af8a15a908..00000000000
--- a/pkgs/development/erlang-modules/hex/meck.nix
+++ /dev/null
@@ -1,13 +0,0 @@
-{ stdenv, buildHex }:
-
-buildHex {
-  name = "meck";
-  version = "0.8.3";
-  sha256 = "1dh2rhks1xly4f49x89vbhsk8fgwkx5zqp0n98mnng8rs1rkigak";
-
-  meta = {
-    description = "A mocking framework for Erlang";
-    homepage = "https://github.com/eproxus/meck";
-    license = stdenv.lib.licenses.apsl20;
-  };
-}
diff --git a/pkgs/development/erlang-modules/hex/rebar3-pc.nix b/pkgs/development/erlang-modules/hex/rebar3-pc.nix
deleted file mode 100644
index 5bc45d3e3ab..00000000000
--- a/pkgs/development/erlang-modules/hex/rebar3-pc.nix
+++ /dev/null
@@ -1,7 +0,0 @@
-{ buildHex, goldrush }:
-
-buildHex {
-  name = "pc";
-  version = "1.1.0";
-  sha256 = "1br5xfl4b2z70b6a2ccxppn64jvkqgpmy4y9v81kxzb91z0ss9ma";
-}