diff --git a/pkgs/applications/misc/mlterm/default.nix b/pkgs/applications/misc/mlterm/default.nix
index 80d0c136628..d9b03fd86e1 100644
--- a/pkgs/applications/misc/mlterm/default.nix
+++ b/pkgs/applications/misc/mlterm/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "3.3.8";
 
   src = fetchurl {
-    url = "https://downloads.sourceforge.net/project/mlterm/01release/${name}/${name}.tar.gz";
+    url = "mirror://sourceforge/project/mlterm/01release/${name}/${name}.tar.gz";
     sha256 = "088pgxynzxxii7wdmjp2fdkxydirx4k05588zkhlzalkb5l8ji1i";
   };