diff --git a/z.sh b/z.sh
index e5056fa..4bad37a 100755
--- a/z.sh
+++ b/z.sh
@@ -38,7 +38,7 @@ _z() {
   # don't track excluded dirs
   local exclude
   for exclude in "${_Z_EXCLUDE_DIRS[@]}"; do
-   [ "$*" == "$exclude" ] && return
+   [ "$*" = "$exclude" ] && return
   done
 
   # maintain the file