Index: main/plugin-odf/src/org/ametys/odf/observation/UpdateReferenceOnOrgUnitDeletionObserver.java
===================================================================
--- main/plugin-odf/src/org/ametys/odf/observation/UpdateReferenceOnOrgUnitDeletionObserver.java	(revision 37422)
+++ main/plugin-odf/src/org/ametys/odf/observation/UpdateReferenceOnOrgUnitDeletionObserver.java	(working copy)
@@ -119,9 +119,9 @@
         Expression expr = new AndExpression(cTypeExpr, ouExpr);
         
         String query = org.ametys.plugins.repository.query.QueryHelper.getXPathQuery(null, "ametys:content", expr, null);    
-        AmetysObjectIterable<Program> programIt = _resolver.query(query);
+        AmetysObjectIterable<AbstractProgram<? extends ProgramFactory>> programIt = _resolver.query(query);
         
-        for (AbstractProgram program : programIt)
+        for (AbstractProgram<? extends ProgramFactory> program : programIt)
         {
             program.removeReference(AbstractProgram.ORG_UNITS_REFERENCES, ouId);
             program.saveChanges();