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-rw-r--r--doc/manual/release-notes/rl-1.9.xml2
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/manual/release-notes/rl-1.9.xml b/doc/manual/release-notes/rl-1.9.xml
index 9987226ff769..e0c79e751ed7 100644
--- a/doc/manual/release-notes/rl-1.9.xml
+++ b/doc/manual/release-notes/rl-1.9.xml
@@ -75,7 +75,7 @@ $ nix-shell -p pan -I nixpkgs=https://github.com/NixOS/nixpkgs-channels/archive/
       <listitem><para>In <command>nixos-rebuild</command> (on NixOS):
 
 <screen>
-$ nixos-rebuild test -I nixpkgs=nixpkgs=https://github.com/NixOS/nixpkgs-channels/archive/nixos-unstable.tar.gz
+$ nixos-rebuild test -I nixpkgs=https://github.com/NixOS/nixpkgs-channels/archive/nixos-unstable.tar.gz
 </screen>
 
       </para></listitem>