diff --git a/wp-admin/admin-functions.php b/wp-admin/admin-functions.php
index 6afef35b38..a4d0a01d9b 100644
--- a/wp-admin/admin-functions.php
+++ b/wp-admin/admin-functions.php
@@ -523,7 +523,7 @@ function checked($checked, $current) {
 
 function return_categories_list($parent = 0) {
 	global $wpdb;
-	return $wpdb->get_col("SELECT cat_ID FROM $wpdb->categories WHERE category_parent = $parent ORDER BY category_count DESC LIMIT 100");
+	return $wpdb->get_col("SELECT cat_ID FROM $wpdb->categories WHERE category_parent = $parent ORDER BY category_count DESC");
 }
 
 function sort_cats($cat1, $cat2) {