diff --git a/pkgs/development/tools/analysis/findbugs/default.nix b/pkgs/development/tools/analysis/findbugs/default.nix
index a5a3d2439186..7f2df62008f0 100644
--- a/pkgs/development/tools/analysis/findbugs/default.nix
+++ b/pkgs/development/tools/analysis/findbugs/default.nix
@@ -39,5 +39,6 @@ stdenv.mkDerivation rec {
     homepage = http://findbugs.sourceforge.net/;
     maintainers = with maintainers; [ pSub ];
     platforms = with platforms; unix;
+    license = licenses.lgpl3;
   };
 }