diff --git a/src/Admin/MetaBox.php b/src/Admin/MetaBox.php
index 116117f..dbc9d0d 100644
--- a/src/Admin/MetaBox.php
+++ b/src/Admin/MetaBox.php
@@ -112,7 +112,7 @@ public function save_meta_box_options(): void {
 				if ( empty( $_POST['gtmkit_option']['page_type'] ) ) {
 					delete_post_meta( (int) $_POST['post_ID'], 'gtmkit_page_type' );
 				} else {
-					$page_type = sanitize_text_field( $_POST['gtmkit_option']['page_type'] );
+					$page_type = sanitize_text_field( wp_unslash( $_POST['gtmkit_option']['page_type'] ) );
 					update_post_meta( (int) $_POST['post_ID'], 'gtmkit_page_type', $page_type );
 				}
 			}