diff --git a/templates/posix.txt b/templates/posix.txt
index 3da30db..5a3ba5b 100644
--- a/templates/posix.txt
+++ b/templates/posix.txt
@@ -105,7 +105,7 @@ __zoxide_z() {
             \command printf 'zoxide: $OLDPWD is not set'
             return 1
         fi
-    elif [ "$#" -eq 1 ] && [ "$1" = '.' -o "$1" = '..' ]; then
+    elif [ "$#" -eq 1 ] && { [ "$1" = '.' ] || [ "$1" = '..' ]; }; then
         __zoxide_cd "$1"
     elif [ "$#" -eq 1 ] && [ -d "$1" ]; then
         __zoxide_cd "$1"