diff --git a/pkgs/system/all-packages-generic.nix b/pkgs/system/all-packages-generic.nix
index 5e013ab30a4..05a28bc317c 100644
--- a/pkgs/system/all-packages-generic.nix
+++ b/pkgs/system/all-packages-generic.nix
@@ -137,6 +137,10 @@ rec {
     inherit fetchurl stdenv;
   };
 
+  nmap = (import ../tools/security/nmap) {
+    inherit fetchurl stdenv;
+  };
+
   ### SHELLS
 
   bash = (import ../shells/bash) {