diff --git a/screening/source/java/ch/systemsx/cisd/openbis/dss/generic/server/TabularDataGraphServlet.java b/screening/source/java/ch/systemsx/cisd/openbis/dss/generic/server/TabularDataGraphServlet.java
index 5a57b75a30fb8e170b95e237b259bdf3267aad1b..a3da0caf8f74c360f35b4dd791ae8133d08afc74 100644
--- a/screening/source/java/ch/systemsx/cisd/openbis/dss/generic/server/TabularDataGraphServlet.java
+++ b/screening/source/java/ch/systemsx/cisd/openbis/dss/generic/server/TabularDataGraphServlet.java
@@ -170,8 +170,8 @@ public class TabularDataGraphServlet extends AbstractDatasetDownloadServlet
 
         } catch (Exception e)
         {
-            printErrorResponse(response, "Invalid Request");
             e.printStackTrace();
+            printErrorResponse(response, "Invalid Request");
         }
     }