diff --git a/antigen.zsh b/antigen.zsh
index aa32ff2..30ec66f 100644
--- a/antigen.zsh
+++ b/antigen.zsh
@@ -245,12 +245,12 @@ antigen-revert () {
             # If we have a `*.plugin.zsh`, source it.
             source "$script_loc"
 
-        elif [[ ! -z "$(ls "$location" | grep -m1 '\.zsh$')" ]]; then
+        elif ls "$location" | grep -qm1 '\.zsh$'; then
             # If there is no `*.plugin.zsh` file, source *all* the `*.zsh`
             # files.
             for script ($location/*.zsh(N)) source "$script"
 
-        elif [[ ! -z "$(ls "$location" | grep -m1 '\.sh$')" ]]; then
+        elif ls "$location" | grep -qm1 '\.sh$'; then
             # If there are no `*.zsh` files either, we look for and source any
             # `*.sh` files instead.
             for script ($location/*.sh(N)) source "$script"