diff --git a/pkgs/development/libraries/adslib/default.nix b/pkgs/development/libraries/adslib/default.nix
new file mode 100644
index 000000000000..49b54960b7e6
--- /dev/null
+++ b/pkgs/development/libraries/adslib/default.nix
@@ -0,0 +1,25 @@
+{ lib, stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  pname = "adslib";
+  version = "unstable-2020-08-28";
+
+  src = fetchFromGitHub {
+    owner = "stlehmann";
+    repo = "ADS";
+    rev = "c457b60d61d73325837ca50be2cc997c4792d481";
+    sha256 = "11r86xa8fr4z957hd0abn8x7182nz30a198d02y7gzpbhpi3z43k";
+  };
+
+  installPhase = ''
+    mkdir -p $out/lib
+    cp adslib.so $out/lib/adslib.so
+  '';
+
+  meta = with lib; {
+    description = "Beckhoff protocol to communicate with TwinCAT devices";
+    homepage = "https://github.com/stlehmann/ADS";
+    license = licenses.mit;
+    maintainers = with maintainers; [ jamiemagee ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 588c79b785d7..d2bb1badd8f6 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -11830,6 +11830,8 @@ in
 
   adns = callPackage ../development/libraries/adns { };
 
+  adslib = callPackage ../development/libraries/adslib { };
+
   afflib = callPackage ../development/libraries/afflib { };
 
   aften = callPackage ../development/libraries/aften { };