X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FModelAPI%2FModelAPI_Session.h;h=613122a35a7e01ae0dbb312770127cce08926d5d;hb=8778f58d6a8decdccf40842a2a28fde15cf7fce7;hp=933dfc58689bb237d1fee40fa04dcf19a3e88a9b;hpb=4f5cbc32b2621344e253876da67abc1ccd94fe31;p=modules%2Fshaper.git

diff --git a/src/ModelAPI/ModelAPI_Session.h b/src/ModelAPI/ModelAPI_Session.h
index 933dfc586..613122a35 100644
--- a/src/ModelAPI/ModelAPI_Session.h
+++ b/src/ModelAPI/ModelAPI_Session.h
@@ -46,7 +46,7 @@ class MODELAPI_EXPORT ModelAPI_Session
 
   //! Starts a new operation (opens a tansaction)
   //! \param theId of operation for history (optional)
-  virtual void startOperation(const std::string& theId) = 0;
+  virtual void startOperation(const std::string& theId = "") = 0;
   //! Finishes the previously started operation (closes the transaction)
   virtual void finishOperation() = 0;
   //! Aborts the operation