diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 4b6869037024..21260205d95e 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -79,6 +79,7 @@ doNotDisplayTwice rec {
   mupen64plus1_5 = mupen64plus; # added 2016-02-12
   mysqlWorkbench = mysql-workbench; # added 2017-01-19
   ncat = nmap;  # added 2016-01-26
+  nmap_graphical = nmap-graphical;  # added 2017-01-19
   nfsUtils = nfs-utils;  # added 2014-12-06
   owncloudclient = owncloud-client;  # added 2016-08
   pidgin-with-plugins = pidgin; # added 2016-06
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index d4ee456b9d21..14c8d927d69a 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -3043,7 +3043,7 @@ in
 
   nmap = callPackage ../tools/security/nmap { };
 
-  nmap_graphical = callPackage ../tools/security/nmap {
+  nmap-graphical = callPackage ../tools/security/nmap {
     graphicalSupport = true;
   };