diff --git a/restws.formats.inc b/restws.formats.inc
index a5243af..4d7c369 100644
--- a/restws.formats.inc
+++ b/restws.formats.inc
@@ -216,9 +216,12 @@ abstract class RestWSBaseFormat implements RestWSFormatInterface {
        elseif ($property instanceof EntityValueWrapper) {
          $data[$name] = $property->value();
        }
        elseif ($property instanceof EntityListWrapper || $property instanceof EntityStructureWrapper)EntityListWrapper) {
          $data[$name] = $this->getData($property);
        }
        elseif ($property instanceof EntityStructureWrapper) {
          $data[$name] = $property->value() !== null ? $this->getData($property) : null;
        }
      }
      catch (EntityMetadataWrapperException $e) {
        // A property causes problems - ignore that.