diff --git a/completions/zsh/_brew_cask b/completions/zsh/_brew_cask
index 5b26a3325a..44f5cc869b 100644
--- a/completions/zsh/_brew_cask
+++ b/completions/zsh/_brew_cask
@@ -12,10 +12,6 @@
 zstyle -T ':completion:*:*:*:brew-cask:*' tag-order && \
 	zstyle ':completion:*:*:*:brew-cask:*' tag-order 'commands'
 
-__brew_cask() {
-  [ -d "$(brew --repo homebrew/cask)" ] && brew cask $@
-}
-
 __brew_all_casks() {
   local -a list
   local expl
@@ -91,10 +87,6 @@ _brew_cask_cat() {
   __brew_all_casks
 }
 
-_brew_cask_cat() {
-  __brew_all_casks
-}
-
 _brew_cask_create() {
   _arguments '*::token:'
 }