diff --git a/src/main/java/org/orph2020/pst/apiimpl/rest/ProposalResource.java b/src/main/java/org/orph2020/pst/apiimpl/rest/ProposalResource.java
index 6def612..87abc26 100644
--- a/src/main/java/org/orph2020/pst/apiimpl/rest/ProposalResource.java
+++ b/src/main/java/org/orph2020/pst/apiimpl/rest/ProposalResource.java
@@ -591,7 +591,7 @@ public Response removeField(@PathParam("proposalCode") Long proposalCode, @PathP
     @Path(proposalRoot+"/export")
     public Response exportProposal(@PathParam("proposalCode")Long proposalCode)
             throws WebApplicationException {
-        ObservingProposal proposalForExport = getObservingProposal(proposalCode);
+        ObservingProposal proposalForExport = findObject(ObservingProposal.class, proposalCode);
 
         return Response
                 .status(Response.Status.OK)