diff --git a/pkgs/by-name/zs/zsh-autocomplete/package.nix b/pkgs/by-name/zs/zsh-autocomplete/package.nix
index 4f9559e74be8..eb24f2a546ca 100644
--- a/pkgs/by-name/zs/zsh-autocomplete/package.nix
+++ b/pkgs/by-name/zs/zsh-autocomplete/package.nix
@@ -2,26 +2,45 @@
   lib,
   stdenvNoCC,
   fetchFromGitHub,
+  zsh,
 }:
 
 stdenvNoCC.mkDerivation rec {
   pname = "zsh-autocomplete";
-  version = "26.08.03";
+  version = "26.08.04";
 
   src = fetchFromGitHub {
     owner = "marlonrichert";
     repo = "zsh-autocomplete";
     rev = version;
-    sha256 = "sha256-NZLlRJZobUj3W94mRG245lGqDb1hE9x0nC9tRx58+Js=";
+    sha256 = "sha256-aba38Cmnps2n6Tr/1i3BjPZ4TbQPsDBURXF1fcd8cDI=";
   };
 
   strictDeps = true;
+
+  nativeInstallCheckInputs = [ zsh ];
+
   installPhase = ''
     install -D zsh-autocomplete.plugin.zsh $out/share/zsh-autocomplete/zsh-autocomplete.plugin.zsh
+    install -D z-async/z-async $out/share/zsh-autocomplete/z-async/z-async
     cp -R Completions $out/share/zsh-autocomplete/Completions
     cp -R Functions $out/share/zsh-autocomplete/Functions
   '';
 
+  doInstallCheck = true;
+
+  installCheckPhase = ''
+    runHook preInstallCheck
+
+    zsh -f -c '
+      fpath=( "$out/share/zsh-autocomplete/z-async" )
+      autoload -Uz z-async
+      z-async help >/dev/null
+    '
+
+    runHook postInstallCheck
+  '';
+
   meta = {
     description = "Real-time type-ahead completion for Zsh. Asynchronous find-as-you-type autocompletion";
     homepage = "https://github.com/marlonrichert/zsh-autocomplete/";