diff --git a/include/sqlpp11/transaction.h b/include/sqlpp11/transaction.h
index 0ca3073f..30580a26 100644
--- a/include/sqlpp11/transaction.h
+++ b/include/sqlpp11/transaction.h
@@ -100,18 +100,11 @@ namespace sqlpp
   };
 
   template <typename Db>
-  transaction_t<Db> start_transaction(Db& db, bool report_unfinished_transaction)
+  transaction_t<Db> start_transaction(Db& db, bool report_unfinished_transaction = report_auto_rollback)
   {
       return {db, report_unfinished_transaction};
   }
 
-  template <typename Db>
-  transaction_t<Db> start_transaction(Db& db, bool report_unfinished_transaction = report_auto_rollback,
-                                      isolation_level isolation = isolation_level::undefined)
-  {
-    return {db, report_unfinished_transaction, isolation};
-  }
-
   template <typename Db>
   transaction_t<Db> start_transaction(Db& db, isolation_level isolation, bool report_unfinished_transaction = report_auto_rollback)
   {
diff --git a/tests/Select.cpp b/tests/Select.cpp
index da5a63eb..78b1daca 100644
--- a/tests/Select.cpp
+++ b/tests/Select.cpp
@@ -183,7 +183,7 @@ int Select(int, char* [])
     for_each_field(row, to_cerr{});
   }
 
-  auto transaction = start_transaction(db, sqlpp::report_auto_rollback, sqlpp::isolation_level::read_committed);
+  auto transaction = start_transaction(db, sqlpp::isolation_level::read_committed);
   std::cout << (db._current_isolation_level == sqlpp::isolation_level::read_committed) << std::endl;
   
   return 0;