diff --git a/openbis/sourceTest/java/ch/systemsx/cisd/openbis/plugin/generic/client/web/server/GenericClientServiceTest.java b/openbis/sourceTest/java/ch/systemsx/cisd/openbis/plugin/generic/client/web/server/GenericClientServiceTest.java
index 13757fac39a4f69e0c0af57f1089081907d953b8..ecf95db1ed827e7b2281a0b20deb1eea6ba375c5 100644
--- a/openbis/sourceTest/java/ch/systemsx/cisd/openbis/plugin/generic/client/web/server/GenericClientServiceTest.java
+++ b/openbis/sourceTest/java/ch/systemsx/cisd/openbis/plugin/generic/client/web/server/GenericClientServiceTest.java
@@ -790,6 +790,8 @@ public final class GenericClientServiceTest extends AbstractClientServiceTest
                             }
                         });
 
+                    exactly(2).of(genericServer).getAuthSession(SESSION_TOKEN);
+                    
                     one(genericServer).updateExperiments(with(equal(SESSION_TOKEN)),
                             with(new IsAnything<UpdatedExperimentsWithType>()));
                     will(new CustomAction("check experiment")
@@ -872,6 +874,8 @@ public final class GenericClientServiceTest extends AbstractClientServiceTest
                             }
                         });
 
+                    exactly(2).of(genericServer).getAuthSession(SESSION_TOKEN);
+                    
                     one(genericServer).updateExperiments(with(equal(SESSION_TOKEN)),
                             with(new IsAnything<UpdatedExperimentsWithType>()));
                     will(new CustomAction("check experiment")