diff --git a/pkgs/development/libraries/gtkmm/3.x.nix b/pkgs/development/libraries/gtkmm/3.x.nix
index 16f0af732552..0796522a5660 100644
--- a/pkgs/development/libraries/gtkmm/3.x.nix
+++ b/pkgs/development/libraries/gtkmm/3.x.nix
@@ -74,7 +74,7 @@ stdenv.mkDerivation rec {
       tutorial.
     '';
 
-    homepage = "https://gtkmm.org/";
+    homepage = "https://gtkmm.gnome.org/";
 
     license = licenses.lgpl2Plus;