1 files changed, 2 insertions, 2 deletions
diff --git a/doc/using/overrides.chapter.md b/doc/using/overrides.chapter.md
index a97a39354a9d8..1c51d27ecedc1 100644
--- a/doc/using/overrides.chapter.md
+++ b/doc/using/overrides.chapter.md
@@ -74,8 +74,8 @@ Example usage:
 mySed = pkgs.gnused.overrideDerivation (oldAttrs: {
   name = "sed-4.2.2-pre";
   src = fetchurl {
-    url = ftp://alpha.gnu.org/gnu/sed/sed-4.2.2-pre.tar.bz2;
-    sha256 = "11nq06d131y4wmf3drm0yk502d2xc6n5qy82cg88rb9nqd2lj41k";
+    url = "ftp://alpha.gnu.org/gnu/sed/sed-4.2.2-pre.tar.bz2";
+    hash = "sha256-MxBJRcM2rYzQYwJ5XKxhXTQByvSg5jZc5cSHEZoB2IY=";
   };
   patches = [];
 });