diff --git a/pkgs/by-name/td/tdf/package.nix b/pkgs/by-name/td/tdf/package.nix
index 26514d2d1305..c76fcaab1ce4 100644
--- a/pkgs/by-name/td/tdf/package.nix
+++ b/pkgs/by-name/td/tdf/package.nix
@@ -41,7 +41,7 @@ rustPlatform.buildRustPackage {
   meta = {
     description = "Tui-based PDF viewer";
     homepage = "https://github.com/itsjunetime/tdf";
-    license = lib.licenses.mpl20;
+    license = lib.licenses.gpl3Plus;
     maintainers = with lib.maintainers; [
       luftmensch-luftmensch
       DieracDelta