diff --git a/src/model/Database.cpp b/src/model/Database.cpp
index 0b83830..53278ce 100644
--- a/src/model/Database.cpp
+++ b/src/model/Database.cpp
@@ -661,6 +661,10 @@ bool Database::LoadOperation(User* user, const wxString& id)
         op.transfert = set.GetAsString(wxT("transfert"));
         op.formula = set.GetAsString(wxT("formula"));      
         op.meta = set.GetBool(wxT("meta"));
+
+	if (!user->_operations[op.year])
+	    user->_operations[op.year] = new std::map<unsigned int, std::vector<Operation> >();
+	    
 	for (it = (*user->_operations[op.year])[op.month].begin();
 	     it != (*user->_operations[op.year])[op.month].end();
 	     it++)