diff --git a/src/demo/resources/demo/simple/consumption_template.xml b/src/demo/resources/demo/simple/consumption_template.xml
index 75a3170b..e50b6980 100644
--- a/src/demo/resources/demo/simple/consumption_template.xml
+++ b/src/demo/resources/demo/simple/consumption_template.xml
@@ -13,7 +13,7 @@
     <iterate type="consumplist" source="mem" consumer="ConsoleExporter">
         <attribute name="category" type="string" script="consumplist.category"/>
         <attribute name="transactionId" type="string" script="consumplist.transactionId"/>
-        <part name="data" minCount="1" maxCount="1">
+        <part name="COUNTRY_Code(Aplha2)" minCount="1" maxCount="1">
             <attribute name="ISO_3166-1_NUM-3" type="string" script="consumplist.iso"/>
         </part>
     </iterate>
diff --git a/src/main/java/com/rapiddweller/benerator/engine/parser/string/IdParser.java b/src/main/java/com/rapiddweller/benerator/engine/parser/string/IdParser.java
index e838cfd3..c7a99465 100644
--- a/src/main/java/com/rapiddweller/benerator/engine/parser/string/IdParser.java
+++ b/src/main/java/com/rapiddweller/benerator/engine/parser/string/IdParser.java
@@ -13,7 +13,7 @@
 public class IdParser extends RegexBasedStringParser {
 
   public IdParser() {
-    super("id", "[A-Za-z_][A-Za-z0-9_-]*");
+    super("id", "[A-Za-z_$][A-Za-z0-9_-[\\(][\\)]]*");
   }
 
 }