diff --git a/ng2-components/ng2-activiti-form/src/services/widget-visibility.service.ts b/ng2-components/ng2-activiti-form/src/services/widget-visibility.service.ts
index 230856e9dc..7dbe7f165e 100644
--- a/ng2-components/ng2-activiti-form/src/services/widget-visibility.service.ts
+++ b/ng2-components/ng2-activiti-form/src/services/widget-visibility.service.ts
@@ -158,11 +158,11 @@ export class WidgetVisibilityService {
 
     private isSearchedField(field: FormFieldModel, fieldToFind: string) {
         let forrmattedFieldName = this.removeLabel(field, fieldToFind);
-        return field.name.toUpperCase() === forrmattedFieldName.toUpperCase();
+        return field.name ? field.name.toUpperCase() === forrmattedFieldName.toUpperCase() : false;
     }
 
     private removeLabel(field: FormFieldModel, fieldToFind) {
-        let formattedFieldName = fieldToFind;
+        let formattedFieldName = fieldToFind || '';
         if (field.fieldType === 'RestFieldRepresentation' && fieldToFind.indexOf('_LABEL') > 0) {
             formattedFieldName = fieldToFind.substring(0, fieldToFind.length - 6);
         }