diff --git a/src/sql/drivers/psql/qsql_psql.cpp b/src/sql/drivers/psql/qsql_psql.cpp
index f4e40b6582..5dcabb0646 100644
--- a/src/sql/drivers/psql/qsql_psql.cpp
+++ b/src/sql/drivers/psql/qsql_psql.cpp
@@ -449,7 +449,7 @@ QVariant QPSQLResult::data(int i)
     case QVariant::ByteArray: {
         size_t len;
         unsigned char *data = PQunescapeBytea((const unsigned char*)val, &len);
-        QByteArray ba((const char*)data, len);
+        QByteArray ba(reinterpret_cast<const char *>(data), int(len));
         qPQfreemem(data);
         return QVariant(ba);
     }