diff --git a/src/main/java/de/dpunkt/myaktion/services/CampaignServiceBean.java b/src/main/java/de/dpunkt/myaktion/services/CampaignServiceBean.java
index d6ff8513df08b13c5944061a4ec684242418c240..7f95ad89b09e66fc257f5844e9a208efeca6e9f1 100644
--- a/src/main/java/de/dpunkt/myaktion/services/CampaignServiceBean.java
+++ b/src/main/java/de/dpunkt/myaktion/services/CampaignServiceBean.java
@@ -12,7 +12,7 @@ import javax.inject.Inject;
 import javax.persistence.EntityManager;
 import javax.persistence.TypedQuery;
 
-import org.hibernate.ogm.OgmSession;
+import org.hibernate.Session;
 
 import de.dpunkt.myaktion.model.Campaign;
 import de.dpunkt.myaktion.model.Organizer;
@@ -99,7 +99,7 @@ public class CampaignServiceBean implements CampaignService {
     // ----------------------------------------------------------------------------------------------
 
     private Double getAmountDonatedSoFar(Campaign campaign) {
-        OgmSession session = entityManager.unwrap(OgmSession.class);
+        Session session = entityManager.unwrap(Session.class);
 
         Double result = session.createNamedQuery(Campaign.getAmountDonatedSoFar, Double.class)
                 .setParameter("campaign", campaign).uniqueResult();