diff --git a/pkgs/servers/sql/mssql/jdbc/jtds.nix b/pkgs/servers/sql/mssql/jdbc/jtds.nix
new file mode 100644
index 000000000000..e67cc1b0ecb9
--- /dev/null
+++ b/pkgs/servers/sql/mssql/jdbc/jtds.nix
@@ -0,0 +1,27 @@
+{lib, stdenv, fetchurl, unzip}:
+
+stdenv.mkDerivation rec {
+  pname = "jtds";
+  version = "1.3.1";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/jtds/${version}/${pname}-${version}-dist.zip";
+    sha256 = "sha256-eV0P8QdjfuHXzYssH8yHhynuH0Clg7MAece2Up3S9M0";
+  };
+
+  sourceRoot = ".";
+
+  installPhase = ''
+    mkdir -p $out/share/java
+    cp jtds-*.jar $out/share/java/jtds-jdbc.jar
+  '';
+
+  nativeBuildInputs = [ unzip ];
+
+  meta = with lib; {
+    description = "Pure Java (type 4) JDBC 3.0 driver for Microsoft SQL Server";
+    homepage = "http://jtds.sourceforge.net/";
+    license = licenses.lgpl21;
+    platforms = platforms.unix;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 37388112121c..8d98f53a3318 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -13113,7 +13113,7 @@ with pkgs;
   squeak = callPackage ../development/compilers/squeak { };
 
   squirrel-sql = callPackage ../development/tools/database/squirrel-sql {
-    drivers = [ mssql_jdbc mysql_jdbc postgresql_jdbc ];
+    drivers = [ jtds_jdbc mssql_jdbc mysql_jdbc postgresql_jdbc ];
   };
 
   stalin = callPackage ../development/compilers/stalin { };
@@ -21353,6 +21353,7 @@ with pkgs;
   mysql_jdbc = callPackage ../servers/sql/mysql/jdbc { };
 
   mssql_jdbc = callPackage ../servers/sql/mssql/jdbc { };
+  jtds_jdbc = callPackage ../servers/sql/mssql/jdbc/jtds.nix { };
 
   azuredatastudio = callPackage ../applications/misc/azuredatastudio { };