diff --git a/pkgs/tools/admin/google-cloud-sdk/default.nix b/pkgs/tools/admin/google-cloud-sdk/default.nix
index 8ab301eeb38c..fd02e7ea418e 100644
--- a/pkgs/tools/admin/google-cloud-sdk/default.nix
+++ b/pkgs/tools/admin/google-cloud-sdk/default.nix
@@ -99,6 +99,11 @@ in stdenv.mkDerivation rec {
     mv $out/google-cloud-sdk/completion.bash.inc $out/share/bash-completion/completions/gcloud
     ln -s $out/share/bash-completion/completions/gcloud $out/share/bash-completion/completions/gsutil
 
+    # setup zsh completion
+    mkdir -p $out/share/zsh/site-functions
+    mv $out/google-cloud-sdk/completion.zsh.inc $out/share/zsh/site-functions/_gcloud
+    ln -s $out/share/zsh/site-functions/_gcloud $out/share/zsh/site-functions/_gsutil
+
     # This directory contains compiled mac binaries. We used crcmod from
     # nixpkgs instead.
     rm -r $out/google-cloud-sdk/platform/gsutil/third_party/crcmod \