diff --git a/Civi/DataProcessor/Source/Contribution/ContributionSource.php b/Civi/DataProcessor/Source/Contribution/ContributionSource.php
index 62a33c230ef5d256694a677e21652ee62f501cc1..573bb8aa8d490f2c2b3a50ee131685a0946679a2 100644
--- a/Civi/DataProcessor/Source/Contribution/ContributionSource.php
+++ b/Civi/DataProcessor/Source/Contribution/ContributionSource.php
@@ -39,7 +39,7 @@ class ContributionSource extends AbstractCivicrmEntitySource {
 
     // Create the contribution soft data flow and data flow description
     $this->contributionSoftDataFlow = new SqlTableDataFlow('civicrm_contribution_soft', $this->getSourceName().'_contribution_soft');
-    DataSpecificationUtils::addDAOFieldsToDataSpecification('CRM_Contribute_DAO_ContributionSoft', $this->contributionSoftDataFlow->getDataSpecification(), array('id'), 'contribution_soft_', 'contribution_soft_', E::ts('Soft :: '));
+    DataSpecificationUtils::addDAOFieldsToDataSpecification('CRM_Contribute_DAO_ContributionSoft', $this->contributionSoftDataFlow->getDataSpecification(), array('id'), '', 'contribution_soft_', E::ts('Soft :: '));
   }