diff --git a/includes/class-genesis-simple-sidebars-admin.php b/includes/class-genesis-simple-sidebars-admin.php
index 3edcc68..8f6f236 100644
--- a/includes/class-genesis-simple-sidebars-admin.php
+++ b/includes/class-genesis-simple-sidebars-admin.php
@@ -249,7 +249,8 @@ class Genesis_Simple_Sidebars_Admin extends Genesis_Admin_Basic {
 		if ( ! $id || is_registered_sidebar( $id ) ) {
 			$n = count( $db ) + 1;
 			do {
-				$id = 'gss-sidebar-' . [ $n++ ];
+				$n  = $n++;
+				$id = 'gss-sidebar-' . $n;
 			} while ( is_registered_sidebar( $id ) );
 		}