diff --git a/src/SMESH_I/SMESH_Gen_i_1.cxx b/src/SMESH_I/SMESH_Gen_i_1.cxx
index 0ae519858..b08b7e3e6 100644
--- a/src/SMESH_I/SMESH_Gen_i_1.cxx
+++ b/src/SMESH_I/SMESH_Gen_i_1.cxx
@@ -277,6 +277,10 @@ static SALOMEDS::SObject_ptr publish(SALOMEDS::Study_ptr   theStudy,
       SO = aStudyBuilder->NewObjectToTag( theFatherObject, theTag );
       isNewSO = true;
     }
+    else
+    {
+      isInUseCaseTree = useCaseBuilder->IsUseCaseNode( SO );
+    }
   }
   else
   {