diff --git a/pkgs/by-name/st/stenc/package.nix b/pkgs/by-name/st/stenc/package.nix
index 404fc89b303f..58c82ca15e54 100644
--- a/pkgs/by-name/st/stenc/package.nix
+++ b/pkgs/by-name/st/stenc/package.nix
@@ -6,6 +6,7 @@
   autoreconfHook,
   pkg-config,
   pandoc,
+  installShellFiles,
 }:
 
 stdenv.mkDerivation rec {
@@ -28,10 +29,15 @@ stdenv.mkDerivation rec {
     autoreconfHook
     pkg-config
     pandoc
+    installShellFiles
   ];
 
   doCheck = true;
 
+  postInstall = ''
+    installShellCompletion --bash bash-completion/stenc
+  '';
+
   passthru.updateScript = gitUpdater { };
 
   meta = {