diff --git a/pkgs/servers/sql/virtuoso/6.x.nix b/pkgs/servers/sql/virtuoso/6.x.nix
index eda1f060df2..0daf7533a60 100644
--- a/pkgs/servers/sql/virtuoso/6.x.nix
+++ b/pkgs/servers/sql/virtuoso/6.x.nix
@@ -40,6 +40,6 @@ stdenv.mkDerivation rec {
     description = "SQL/RDF database used by, e.g., KDE-nepomuk";
     homepage = http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/;
     platforms = platforms.linux;
-    maintainers = [ ];
+    license = licenses.gpl2;
   };
 }
diff --git a/pkgs/servers/sql/virtuoso/7.x.nix b/pkgs/servers/sql/virtuoso/7.x.nix
index 536e96354d9..17ec49d1613 100644
--- a/pkgs/servers/sql/virtuoso/7.x.nix
+++ b/pkgs/servers/sql/virtuoso/7.x.nix
@@ -31,6 +31,6 @@ stdenv.mkDerivation rec {
     homepage = http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/;
     #configure: The current version [...] can only be built on 64bit platforms
     platforms = [ "x86_64-linux" ];
-    maintainers = [ ];
+    license = licenses.gpl2;
   };
 }