diff --git a/saoriapplication.cpp b/saoriapplication.cpp
index 110176e..a35b8a3 100644
--- a/saoriapplication.cpp
+++ b/saoriapplication.cpp
@@ -143,7 +143,7 @@
     m_config->remove("instances");
     m_config->beginGroup("instances");
     for(int i = 0;i < m_instanceList.count();i ++) {
-        m_config->beginGroup(QCryptographicHash::hash(m_instanceList[i]->instance().toString().toLatin1(),QCryptographicHash::Md5));
+        m_config->beginGroup(QCryptographicHash::hash(m_instanceList[i]->instance().toString().toLatin1(),QCryptographicHash::Md5).toHex());
         m_config->setValue("url",m_instanceList[i]->instance());
         m_config->setValue("clientId",m_instanceList[i]->clientId());
         m_config->setValue("clientSecret",m_instanceList[i]->clientSecret());