diff --git a/includes/exporters/webform_exporter.inc b/includes/exporters/webform_exporter.inc
index 2d36af491..19e6c89b0 100644
--- a/includes/exporters/webform_exporter.inc
+++ b/includes/exporters/webform_exporter.inc
@@ -5,7 +5,7 @@
  */
 class webform_exporter {
   public $options = array();
-  public $export_wordrap;
+  public $export_wordrap = NULL;
 
   /**
    * Constructor for webform_exporter classes.