diff --git a/include/EigerSavingCtrlObj.h b/include/EigerSavingCtrlObj.h
index 9a4cf7a016dd834c52eef33221770e6edcca2b58..7ba06fd1a3728a65795b755a84d337c7237700c4 100644
--- a/include/EigerSavingCtrlObj.h
+++ b/include/EigerSavingCtrlObj.h
@@ -51,9 +51,9 @@ namespace lima
       class _EndDownloadCallback;
       friend class _EndDownloadCallback;
 
-      virtual void _prepare();
-      virtual void _start();
-      virtual void _setActive(bool);
+      virtual void _prepare(int =0) override;
+      virtual void _start(int =0) override;
+      virtual void _setActive(bool, int =0) override;
 
       Camera&			m_cam;
       int			m_serie_id;
diff --git a/src/EigerSavingCtrlObj.cpp b/src/EigerSavingCtrlObj.cpp
index 063eaffa962b5dd53b3220db39034dc5789f238a..21bbce1c501e85a2358dcdafe1dee573487b2c59 100644
--- a/src/EigerSavingCtrlObj.cpp
+++ b/src/EigerSavingCtrlObj.cpp
@@ -182,7 +182,7 @@ void SavingCtrlObj::stop()
   m_poll_master_file = false;
 }
 
-void SavingCtrlObj::_setActive(bool active)
+void SavingCtrlObj::_setActive(bool active, int)
 {
   DEB_MEMBER_FUNCT();
 
@@ -194,7 +194,7 @@ void SavingCtrlObj::_setActive(bool active)
   active_req->wait();
 }
 
-void SavingCtrlObj::_prepare()
+void SavingCtrlObj::_prepare(int)
 {
   DEB_MEMBER_FUNCT();
 
@@ -215,7 +215,7 @@ void SavingCtrlObj::_prepare()
   m_poll_master_file = true;
 }
 
-void SavingCtrlObj::_start()
+void SavingCtrlObj::_start(int)
 {
   DEB_MEMBER_FUNCT();
   DEB_PARAM() << DEB_VAR1(m_active);