diff --git a/pkgs/tools/security/nmap/builder.sh b/pkgs/tools/security/nmap/builder.sh
new file mode 100644
index 000000000000..8397626c00fd
--- /dev/null
+++ b/pkgs/tools/security/nmap/builder.sh
@@ -0,0 +1,3 @@
+. $stdenv/setup
+ 
+genericBuild
diff --git a/pkgs/tools/security/nmap/default.nix b/pkgs/tools/security/nmap/default.nix
new file mode 100644
index 000000000000..0e32a8f6dc0a
--- /dev/null
+++ b/pkgs/tools/security/nmap/default.nix
@@ -0,0 +1,12 @@
+{stdenv, fetchurl}:
+  
+stdenv.mkDerivation {
+  name = "nmap-3.55";
+  
+  builder = ./builder.sh;
+  src = fetchurl {
+    url = http://download.insecure.org/nmap/dist/nmap-3.55.tar.bz2;
+    md5 = "88b5f010f43b0e2ee0c2cfb468796aa9";
+  };
+  
+}