diff --git a/pkgs/tools/X11/alttab/default.nix b/pkgs/tools/X11/alttab/default.nix
index 34c17a7b5180..ecafd25bf7df 100644
--- a/pkgs/tools/X11/alttab/default.nix
+++ b/pkgs/tools/X11/alttab/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     homepage = "https://github.com/sagb/alttab";
     description = "X11 window switcher designed for minimalistic window managers or standalone X11 session";
-    license = licenses.gpl3;
+    license = licenses.gpl3Plus;
     platforms = platforms.all;
     maintainers = [ maintainers.sgraf ];
   };