diff --git a/pkgs/development/beam-modules/hex/default.nix b/pkgs/development/beam-modules/hex/default.nix
index e12f0ba4b74d..794b9e5cf222 100644
--- a/pkgs/development/beam-modules/hex/default.nix
+++ b/pkgs/development/beam-modules/hex/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, writeText, elixir }:
+{ lib, stdenv, fetchFromGitHub, writeText, elixir }:
 
 let
   shell = drv: stdenv.mkDerivation {
diff --git a/pkgs/development/beam-modules/pc/default.nix b/pkgs/development/beam-modules/pc/default.nix
index 8b5836f4c621..a6d7c1c44de3 100644
--- a/pkgs/development/beam-modules/pc/default.nix
+++ b/pkgs/development/beam-modules/pc/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildHex }:
+{ lib, buildHex }:
 
 buildHex {
   name = "pc";
diff --git a/pkgs/development/beam-modules/pgsql/default.nix b/pkgs/development/beam-modules/pgsql/default.nix
index e64476212dd1..df6561b7cf18 100644
--- a/pkgs/development/beam-modules/pgsql/default.nix
+++ b/pkgs/development/beam-modules/pgsql/default.nix
@@ -1,4 +1,4 @@
-{stdenv, fetchFromGitHub, buildRebar3 }:
+{ lib, stdenv, fetchFromGitHub, buildRebar3 }:
 
 let
   shell = drv: stdenv.mkDerivation {
diff --git a/pkgs/development/beam-modules/webdriver/default.nix b/pkgs/development/beam-modules/webdriver/default.nix
index da6cb1273426..1255ec59c3a2 100644
--- a/pkgs/development/beam-modules/webdriver/default.nix
+++ b/pkgs/development/beam-modules/webdriver/default.nix
@@ -1,4 +1,4 @@
-{stdenv, fetchFromGitHub, writeText, erlang }:
+{ lib, stdenv, fetchFromGitHub, writeText, erlang }:
 
 let
   shell = drv: stdenv.mkDerivation {