diff --git a/process/ImporterMappingFunctions_lib/process.js b/process/ImporterMappingFunctions_lib/process.js
index 496ae5c71a907dd73e1f0a41852e837d93f6c5b3..a5746a0276df1bc7963975598a51395c10e741b1 100644
--- a/process/ImporterMappingFunctions_lib/process.js
+++ b/process/ImporterMappingFunctions_lib/process.js
@@ -16,8 +16,8 @@ import("Importer_lib");
 
 /*
 +---------------------------------------------------------------+
-¦ toolkit methods for the import handler                ¦
-¦ DO NOT TOUCH - use lib_importerCustomMappingFunctions ¦
+� toolkit methods for the import handler                �
+� DO NOT TOUCH - use lib_importerCustomMappingFunctions �
 +---------------------------------------------------------------+
  */
 
@@ -145,7 +145,7 @@ function iAttribute(pObject)
                 var parent = "NULL";
                 // select ab_attributeid from AB_ATTRIBUTE where ATTRIBUTE_NAME = 'Subordinate campaign of' and attribute_parent_id is null
                 id = newSelect(ab_attributeId, alias).from(ab_attribute).where(attribute_name, attributes[i])
-                        .and(attribute_parent_id, "is null").cell();
+                        .and(attribute_parent_id + "is null").cell();
             } 
             else 
             {