diff --git a/pkgs/development/libraries/librsync/0.9.nix b/pkgs/development/libraries/librsync/0.9.nix
deleted file mode 100644
index 74dca4e30854..000000000000
--- a/pkgs/development/libraries/librsync/0.9.nix
+++ /dev/null
@@ -1,26 +0,0 @@
-{ lib, stdenv, fetchurl }:
-
-stdenv.mkDerivation {
-  name = "librsync-0.9.7";
-
-  src = fetchurl {
-    url = "mirror://sourceforge/librsync/librsync-0.9.7.tar.gz";
-    sha256 = "1mj1pj99mgf1a59q9f2mxjli2fzxpnf55233pc1klxk2arhf8cv6";
-  };
-
-  hardeningDisable = [ "format" ];
-
-  configureFlags = [
-    (lib.enableFeature stdenv.isCygwin    "static")
-    (lib.enableFeature (!stdenv.isCygwin) "shared")
-  ];
-
-  dontStrip = stdenv.hostPlatform != stdenv.buildPlatform;
-
-  meta = {
-    homepage = "http://librsync.sourceforge.net/";
-    license = lib.licenses.lgpl2Plus;
-    description = "Implementation of the rsync remote-delta algorithm";
-    platforms = lib.platforms.unix;
-  };
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 4dcede949889..a148788c35b5 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -423,6 +423,7 @@ mapAliases ({
   libqrencode = qrencode;  # added 2019-01-01
   librdf = lrdf; # added 2020-03-22
   librecad2 = librecad;  # backwards compatibility alias, added 2015-10
+  librsync_0_9 = throw "librsync_0_9 has been removed"; # added 2021-07-24
   libseat = seatd; # added 2021-06-24
   libsysfs = sysfsutils; # added 2018-04-25
   libtidy = html-tidy;  # added 2014-12-21
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 9e8ed45bfd4f..1b87dc31c237 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -17043,8 +17043,6 @@ in
 
   librsync = callPackage ../development/libraries/librsync { };
 
-  librsync_0_9 = callPackage ../development/libraries/librsync/0.9.nix { };
-
   librttopo = callPackage ../development/libraries/librttopo { };
 
   libs3 = callPackage ../development/libraries/libs3 { };