diff --git a/src/lib/other/useragentmanager.cpp b/src/lib/other/useragentmanager.cpp
index 35078ef3f..28ad99c9f 100644
--- a/src/lib/other/useragentmanager.cpp
+++ b/src/lib/other/useragentmanager.cpp
@@ -44,8 +44,9 @@ void UserAgentManager::loadSettings()
     QStringList userAgentsList = settings.value(QSL("UserAgentsList"), QStringList()).toStringList();
     settings.endGroup();
 
-    m_usePerDomainUserAgent = (m_usePerDomainUserAgent && domainList.count() == userAgentsList.count());
+    m_usePerDomainUserAgent = (m_usePerDomainUserAgent && (domainList.count() == userAgentsList.count()));
 
+    m_userAgentsList.clear();
     if (m_usePerDomainUserAgent) {
         for (int i = 0; i < domainList.count(); ++i) {
             m_userAgentsList[domainList.at(i)] = userAgentsList.at(i);
diff --git a/src/lib/preferences/useragentdialog.cpp b/src/lib/preferences/useragentdialog.cpp
index 9bf44b4da..78e171d5a 100644
--- a/src/lib/preferences/useragentdialog.cpp
+++ b/src/lib/preferences/useragentdialog.cpp
@@ -176,6 +176,7 @@ void UserAgentDialog::accept()
     settings.setValue(QSL("DomainList"), domainList);
     settings.setValue(QSL("UserAgentsList"), userAgentsList);
     settings.endGroup();
+    settings.sync();
 
     m_manager->loadSettings();
     mApp->networkManager()->loadSettings();