diff --git a/dotfiles/zsh/zshrc b/dotfiles/zsh/zshrc
index 5f2dedc..d886f13 100644
--- a/dotfiles/zsh/zshrc
+++ b/dotfiles/zsh/zshrc
@@ -71,7 +71,7 @@ source "$HOME/github_dotfiles/zsh-vim-mode/zsh-vim-mode.plugin.zsh"
 # HELP COMMAND
 # By default in zsh, run-help is an alias to man, which is useless.
 # Here we load the zsh run-help function and name it help, just like in bash.
-if command -v run-help >/dev/null 2>&1; then
+if alias run-help >/dev/null 2>&1; then
     unalias run-help
 fi
 autoload -Uz run-help