diff --git a/pkgs/tools/networking/ytcc/default.nix b/pkgs/tools/networking/ytcc/default.nix
index ccd6009a6aa06f..aa3f07f1dc32bb 100644
--- a/pkgs/tools/networking/ytcc/default.nix
+++ b/pkgs/tools/networking/ytcc/default.nix
@@ -37,6 +37,10 @@ python3Packages.buildPythonApplication rec {
 
   postInstall = ''
     installManPage doc/ytcc.1
+    installShellCompletion --cmd ytcc \
+      --bash scripts/completions/bash/ytcc.completion.sh \
+      --fish scripts/completions/fish/ytcc.fish \
+      --zsh scripts/completions/zsh/_ytcc
   '';
 
   meta = {