diff --git a/pkgs/by-name/ku/kubie/package.nix b/pkgs/by-name/ku/kubie/package.nix
index 70603e620d1c..0b305dfe42eb 100644
--- a/pkgs/by-name/ku/kubie/package.nix
+++ b/pkgs/by-name/ku/kubie/package.nix
@@ -28,7 +28,7 @@ rustPlatform.buildRustPackage rec {
   ];
 
   postInstall = ''
-    installShellCompletion completion/kubie.bash
+    installShellCompletion completion/kubie.{bash,fish}
 
     wrapProgram "$out/bin/kubie" \
       --prefix PATH : "${