diff --git a/src/SMESH_I/SMESH_MEDMesh_i.cxx b/src/SMESH_I/SMESH_MEDMesh_i.cxx
index 1fdecd039..6a96b805c 100644
--- a/src/SMESH_I/SMESH_MEDMesh_i.cxx
+++ b/src/SMESH_I/SMESH_MEDMesh_i.cxx
@@ -1205,7 +1205,17 @@ SMESH_MEDMesh_i::getElementType(SALOME_MED::medEntityMesh entity,
   return (SALOME_MED::medGeometryElement) 0;
 }
 
+//=============================================================================
+/*!
+ * Test if this and other aggregate the same MESH
+ */
+//=============================================================================
 CORBA::Boolean SMESH_MEDMesh_i::areEquals(SALOME_MED::MESH_ptr other)
+  throw (SALOME::SALOME_Exception)
 {
+  MESSAGE("!!!! NOT YET IMPLEMENTED !!!!!");
+  
+  THROW_SALOME_CORBA_EXCEPTION("Unimplemented Method", SALOME::BAD_PARAM);
+
   return false;
 }
diff --git a/src/SMESH_I/SMESH_MEDMesh_i.hxx b/src/SMESH_I/SMESH_MEDMesh_i.hxx
index 60b13c188..c719bed70 100644
--- a/src/SMESH_I/SMESH_MEDMesh_i.hxx
+++ b/src/SMESH_I/SMESH_MEDMesh_i.hxx
@@ -227,7 +227,8 @@ class SMESH_MEDMesh_i:
 	void calculeNbElts() throw(SALOME::SALOME_Exception);
 	void createFamilies() throw(SALOME::SALOME_Exception);
 
-        CORBA::Boolean areEquals(SALOME_MED::MESH_ptr other);
+        CORBA::Boolean areEquals(SALOME_MED::MESH_ptr other) 
+	  throw(SALOME::SALOME_Exception);;
 };
 
 #endif /* _MED_MESH_I_HXX_ */