diff --git a/Library/Homebrew/completions/zsh.erb b/Library/Homebrew/completions/zsh.erb
index 87832e2483..7c202f1f62 100644
--- a/Library/Homebrew/completions/zsh.erb
+++ b/Library/Homebrew/completions/zsh.erb
@@ -84,7 +84,7 @@ __brew_casks() {
   local comp_cachename=brew_casks
 
   if ! _retrieve_cache $comp_cachename; then
-    list=( $(brew search --cask) )
+    list=( $(brew casks) )
     _store_cache $comp_cachename list
   fi