diff --git a/uberfire-rest/uberfire-rest-backend/src/main/java/org/guvnor/rest/backend/ProjectResource.java b/uberfire-rest/uberfire-rest-backend/src/main/java/org/guvnor/rest/backend/ProjectResource.java
index 426a53d9a9..98648d263e 100644
--- a/uberfire-rest/uberfire-rest-backend/src/main/java/org/guvnor/rest/backend/ProjectResource.java
+++ b/uberfire-rest/uberfire-rest-backend/src/main/java/org/guvnor/rest/backend/ProjectResource.java
@@ -634,14 +634,14 @@ private org.guvnor.structure.repositories.Repository checkRepositoryExistence(St
 
     private org.guvnor.structure.organizationalunit.OrganizationalUnit checkOrganizationalUnitExistence(String orgUnitName) {
         if (orgUnitName == null || orgUnitName.isEmpty()) {
-            throw new WebApplicationException(Response.status(Response.Status.NOT_FOUND).entity(orgUnitName).build());
+            throw new WebApplicationException(Response.status(Status.BAD_REQUEST).type(MediaType.TEXT_PLAIN_TYPE).entity("Missing organizationalUnitName").build());
         }
 
         org.guvnor.structure.organizationalunit.OrganizationalUnit origOrgUnit
                 = organizationalUnitService.getOrganizationalUnit(orgUnitName);
 
         if (origOrgUnit == null) {
-            throw new WebApplicationException(Response.status(Response.Status.NOT_FOUND).entity(orgUnitName).build());
+            throw new WebApplicationException(Response.status(Response.Status.NOT_FOUND).type(MediaType.TEXT_PLAIN_TYPE).entity(orgUnitName).build());
         }
         return origOrgUnit;
     }