diff --git a/src/SMESH_I/SMESH_MEDFamily_i.hxx b/src/SMESH_I/SMESH_MEDFamily_i.hxx
index e60379c04..58116ae9e 100644
--- a/src/SMESH_I/SMESH_MEDFamily_i.hxx
+++ b/src/SMESH_I/SMESH_MEDFamily_i.hxx
@@ -32,8 +32,8 @@
 #include<string>
 
 class SMESH_MEDFamily_i:
-  public POA_SALOME_MED::FAMILY,
-  public SMESH_MEDSupport_i
+  virtual public POA_SALOME_MED::FAMILY,
+  virtual public SMESH_MEDSupport_i
 {
 protected :
   SMESH_MEDFamily_i();
@@ -61,8 +61,8 @@ public :
   // IDL Methods
   void setProtocol(SALOME::TypeOfCommunication typ) {}
   void release() {}
-  SALOME::SenderInt_ptr getSenderForNumber(long int) {return SALOME::SenderInt::_nil();}
-  SALOME::SenderInt_ptr getSenderForNumberIndex() {return SALOME::SenderInt::_nil();}
+  SALOME::Sender_ptr getSenderForNumber(long int) {return SALOME::Sender::_nil();}
+  SALOME::Sender_ptr getSenderForNumberIndex() {return SALOME::Sender::_nil();}
   
   CORBA::Long            getIdentifier()      
     throw (SALOME::SALOME_Exception);
diff --git a/src/SMESH_I/SMESH_MEDMesh_i.hxx b/src/SMESH_I/SMESH_MEDMesh_i.hxx
index 3e8fe7a35..ee482b0c8 100644
--- a/src/SMESH_I/SMESH_MEDMesh_i.hxx
+++ b/src/SMESH_I/SMESH_MEDMesh_i.hxx
@@ -29,6 +29,7 @@
 
 #include <SALOMEconfig.h>
 #include CORBA_SERVER_HEADER(MED)
+#include CORBA_SERVER_HEADER(SALOME_Comm)
 #include <string>
 #include <vector>
 #include <map>
@@ -43,8 +44,8 @@
 
 class SMESH_Mesh_i;
 
-class SMESH_MEDMesh_i:
-	public POA_SALOME_MED::MESH, public PortableServer::RefCountServantBase
+class SMESH_MEDMesh_i: virtual public POA_SALOME_MED::MESH, 
+		       virtual public PortableServer::RefCountServantBase
 {
   public: private: protected:
 	// C++ object containing values
@@ -77,8 +78,8 @@ class SMESH_MEDMesh_i:
 	// IDL Methods
 	void setProtocol(SALOME::TypeOfCommunication typ) {}
 	void release() {}
-	SALOME::SenderDouble_ptr getSenderForCoordinates(long int) {return SALOME::SenderDouble::_nil();}
-	SALOME::SenderInt_ptr getSenderForConnectivity(long int, long int, long int, long int) {return SALOME::SenderInt::_nil();}
+	SALOME::Sender_ptr getSenderForCoordinates(long int) {return SALOME::Sender::_nil();}
+	SALOME::Sender_ptr getSenderForConnectivity(long int, long int, long int, long int) {return SALOME::Sender::_nil();}
 	
 	char *getName() throw(SALOME::SALOME_Exception);
 	CORBA::Long getSpaceDimension() throw(SALOME::SALOME_Exception);