diff --git a/pkgs/development/libraries/libtasn1/default.nix b/pkgs/development/libraries/libtasn1/default.nix
index b1130f6fd34..9f3047ff250 100644
--- a/pkgs/development/libraries/libtasn1/default.nix
+++ b/pkgs/development/libraries/libtasn1/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "libtasn1-1.4";
   
   src = fetchurl {
-    url = http://josefsson.org/gnutls/releases/libtasn1/libtasn1-1.4.tar.gz;
+    url = mirror://gnu/gnutls/libtasn1-1.4.tar.gz;
     sha256 = "15k14cl334cjdw6hbw3scdxm0pfv078kfq6bnz9ngyg4by1kgal4";
   };