diff --git a/pkgs/tools/misc/units/default.nix b/pkgs/tools/misc/units/default.nix
new file mode 100644
index 000000000000..7121c1b40664
--- /dev/null
+++ b/pkgs/tools/misc/units/default.nix
@@ -0,0 +1,9 @@
+{stdenv, fetchurl}:
+stdenv.mkDerivation {
+  name = "units-1.86";
+
+  src = fetchurl {
+    url = ftp://ftp.gnu.org/gnu/units/units-1.86.tar.gz;
+    sha256 = "1syc4d3x1wb03hcxnz7rkgapk96biazfk2qqn2wfyx54bq829lhi";
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index adc22040831e..bd70c1cd13a9 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -551,6 +551,10 @@ rec {
     inherit (xlibs) imake;
   };
 
+  units = import ../tools/misc/units {
+    inherit fetchurl stdenv;
+  };
+
   unshield = import ../tools/archivers/unshield {
     inherit fetchurl stdenv zlib;
   };