diff --git a/pkgs/tools/misc/smug/default.nix b/pkgs/tools/misc/smug/default.nix
index 252ce555c99..1f8263cdc74 100644
--- a/pkgs/tools/misc/smug/default.nix
+++ b/pkgs/tools/misc/smug/default.nix
@@ -21,6 +21,7 @@ buildGoModule rec {
 
   postInstall = ''
     installManPage ./man/man1/smug.1
+    installShellCompletion completion/smug.{bash,fish}
   '';
 
   meta = with lib; {