diff --git a/etc/shell.nix b/etc/shell.nix
index d77e66e9135..286af5115d5 100644
--- a/etc/shell.nix
+++ b/etc/shell.nix
@@ -77,6 +77,8 @@ stdenv.mkDerivation (androidEnvironment // rec {
     taplo
     llvmPackages.bintools # provides lld
 
+    udev # Needed by libudev-sys for GamePad API.
+
     # Build utilities
     cmake dbus gcc git pkg-config which llvm perl yasm m4
     (python3.withPackages (ps: with ps; [virtualenv pip dbus]))
diff --git a/python/servo/platform/linux.py b/python/servo/platform/linux.py
index 879e8f45926..8e79ed34391 100644
--- a/python/servo/platform/linux.py
+++ b/python/servo/platform/linux.py
@@ -35,7 +35,7 @@ APT_PKGS = [
     'libgstrtspserver-1.0-dev',
     'gstreamer1.0-tools',
     'libges-1.0-dev',
-    'libharfbuzz-dev', 'liblzma-dev', 'libunwind-dev', 'libunwind-dev',
+    'libharfbuzz-dev', 'liblzma-dev', 'libudev-dev', 'libunwind-dev',
     'libvulkan1', 'libx11-dev', 'libxcb-render0-dev', 'libxcb-shape0-dev',
     'libxcb-xfixes0-dev', 'libxmu-dev', 'libxmu6', 'libegl1-mesa-dev',
     'llvm-dev', 'm4', 'xorg-dev',