diff --git a/flake.nix b/flake.nix
index d0ff0c02..4240dbe9 100644
--- a/flake.nix
+++ b/flake.nix
@@ -22,7 +22,6 @@
       meta = with nixpkgs.lib; {
         description = "Coriolis is a free database, placement tool and routing tool for VLSI design.";
         homepage    = "http://coriolis.lip6.fr/";
-        license     = licenses.gpl3;
         platforms   = platforms.all;
       };
 
diff --git a/nix/hurricane.nix b/nix/hurricane.nix
index 5aebcf6e..7af6fb9e 100644
--- a/nix/hurricane.nix
+++ b/nix/hurricane.nix
@@ -1,12 +1,13 @@
 { version, meta, generic, ... }:
 
 let pkg =
-  { libxml2, bzip2, rapidjson, qt4, bison, flex, doxygen, coriolis-vlsisapd }:
+  { lib, libxml2, bzip2, rapidjson, qt4, bison, flex, doxygen, coriolis-vlsisapd }:
   {
     name = "hurricane";
     src = ../hurricane;
     buildInputs = [ libxml2 qt4 bzip2 rapidjson coriolis-vlsisapd ];
     nativeBuildInputs = [ bison flex doxygen ];
     pythonImportsCheck = [ "Viewer" "Hurricane" "Cfg2" "Analog" ];
+    continuation = drv: drv.overrideAttrs (o: { meta = o.meta // { license = lib.licenses.lgpl3Plus; });
   };
 in generic pkg
diff --git a/nix/lefdef.nix b/nix/lefdef.nix
index 1d703a66..811d3d8c 100644
--- a/nix/lefdef.nix
+++ b/nix/lefdef.nix
@@ -15,5 +15,7 @@ stdenv.mkDerivation {
   buildInputs = [ python2 boostWithPython coriolis-bootstrap bison flex zlib ];
   nativeBuildInputs = [ cmake ninja ];
 
-  inherit version meta;
+  inherit version;
+
+  meta = meta // { license = lib.licenses.apsl20; };
 }