diff --git a/orm_lib/src/postgresql_impl/PgConnection.cc b/orm_lib/src/postgresql_impl/PgConnection.cc
index e907304b..9b683214 100644
--- a/orm_lib/src/postgresql_impl/PgConnection.cc
+++ b/orm_lib/src/postgresql_impl/PgConnection.cc
@@ -336,7 +336,7 @@ void PgConnection::handleRead()
     }
     if (_isWorking)
     {
-        if (_isRreparingStatement)
+        if (_isRreparingStatement && _cb)
         {
             doAfterPreparing();
         }