diff --git a/pkgs/shells/zsh/zsh-forgit/default.nix b/pkgs/shells/zsh/zsh-forgit/default.nix
index dc8297b0728a..3f3596b4d7b3 100644
--- a/pkgs/shells/zsh/zsh-forgit/default.nix
+++ b/pkgs/shells/zsh/zsh-forgit/default.nix
@@ -37,6 +37,8 @@ stdenv.mkDerivation rec {
     runHook preInstall
 
     install -D bin/git-forgit $out/bin/git-forgit
+    install -D completions/_git-forgit $out/share/zsh/site-functions/_git-forgit
+    install -D completions/git-forgit.zsh $out/share/zsh/${pname}/git-forgit.zsh
     install -D forgit.plugin.zsh $out/share/zsh/${pname}/forgit.plugin.zsh
     wrapProgram $out/bin/git-forgit \
       --prefix PATH : ${lib.makeBinPath [ bash coreutils findutils fzf git gnugrep gnused ]}