diff --git a/pkgs/tools/security/jwt-cli/default.nix b/pkgs/tools/security/jwt-cli/default.nix
index 1e4143495bfa..db049b1fa712 100644
--- a/pkgs/tools/security/jwt-cli/default.nix
+++ b/pkgs/tools/security/jwt-cli/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, rustPlatform, Security }:
+{ lib, stdenv, fetchFromGitHub, installShellFiles, rustPlatform, Security }:
 
 rustPlatform.buildRustPackage rec {
   pname = "jwt-cli";
@@ -13,8 +13,17 @@ rustPlatform.buildRustPackage rec {
 
   cargoHash = "sha256-DXyjdwVJUQpOz/Pctl35D00oSgrfehUg8wYyLdttiew=";
 
+  nativeBuildInputs = [ installShellFiles ];
+
   buildInputs = lib.optional stdenv.isDarwin Security;
 
+  postInstall = ''
+    installShellCompletion --cmd jwt \
+      --bash <($out/bin/jwt completion bash) \
+      --fish <($out/bin/jwt completion fish) \
+      --zsh <($out/bin/jwt completion zsh)
+  '';
+
   doInstallCheck = true;
   installCheckPhase = ''
     $out/bin/jwt --version > /dev/null