diff --git a/src/qtlibtorrent/alertdispatcher.cpp b/src/qtlibtorrent/alertdispatcher.cpp
index b9d3a7a53..1bcfed64e 100644
--- a/src/qtlibtorrent/alertdispatcher.cpp
+++ b/src/qtlibtorrent/alertdispatcher.cpp
@@ -33,12 +33,15 @@
 #include <boost/bind.hpp>
 #include <QMutexLocker>
 
+const size_t DEFAULT_ALERTS_CAPACITY = 32;
+
 QAlertDispatcher::QAlertDispatcher(libtorrent::session *session, QObject* parent)
   : QObject(parent)
   , m_session(session)
   , current_tag(new QAtomicPointer<QAlertDispatcher>(this))
   , event_posted(false)
 {
+  alerts.reserve(DEFAULT_ALERTS_CAPACITY);
   m_session->set_alert_dispatch(boost::bind(&QAlertDispatcher::dispatch, current_tag, _1));
 }
 
@@ -60,16 +63,18 @@ QAlertDispatcher::~QAlertDispatcher() {
   m_session->set_alert_dispatch(dispatch_function_t());
 }
 
-void QAlertDispatcher::getPendingAlertsNoWait(std::deque<libtorrent::alert*>& out) {
+void QAlertDispatcher::getPendingAlertsNoWait(std::vector<libtorrent::alert*>& out) {
   Q_ASSERT(out.empty());
+  out.reserve(DEFAULT_ALERTS_CAPACITY);
 
   QMutexLocker lock(&alerts_mutex);
   alerts.swap(out);
   event_posted = false;
 }
 
-void QAlertDispatcher::getPendingAlerts(std::deque<libtorrent::alert*>& out, unsigned long time) {
+void QAlertDispatcher::getPendingAlerts(std::vector<libtorrent::alert*>& out, unsigned long time) {
   Q_ASSERT(out.empty());
+  out.reserve(DEFAULT_ALERTS_CAPACITY);
 
   QMutexLocker lock(&alerts_mutex);
 
diff --git a/src/qtlibtorrent/alertdispatcher.h b/src/qtlibtorrent/alertdispatcher.h
index a107bf4e1..b9d097f24 100644
--- a/src/qtlibtorrent/alertdispatcher.h
+++ b/src/qtlibtorrent/alertdispatcher.h
@@ -46,8 +46,8 @@ public:
   QAlertDispatcher(libtorrent::session *session, QObject* parent);
   ~QAlertDispatcher();
 
-  void getPendingAlertsNoWait(std::deque<libtorrent::alert*>&);
-  void getPendingAlerts(std::deque<libtorrent::alert*>&, unsigned long time = ULONG_MAX);
+  void getPendingAlertsNoWait(std::vector<libtorrent::alert*>&);
+  void getPendingAlerts(std::vector<libtorrent::alert*>&, unsigned long time = ULONG_MAX);
 
 signals:
   void alertsReceived();
@@ -64,7 +64,7 @@ private:
   libtorrent::session *m_session;
   QMutex alerts_mutex;
   QWaitCondition alerts_condvar;
-  std::deque<libtorrent::alert*> alerts;
+  std::vector<libtorrent::alert*> alerts;
   QSharedPointer<QAtomicPointer<QAlertDispatcher> > current_tag;
   bool event_posted;
 };
diff --git a/src/qtlibtorrent/qbtsession.cpp b/src/qtlibtorrent/qbtsession.cpp
index 818cff613..f8378fc5a 100755
--- a/src/qtlibtorrent/qbtsession.cpp
+++ b/src/qtlibtorrent/qbtsession.cpp
@@ -1649,7 +1649,7 @@ void QBtSession::saveFastResumeData() {
     } catch(libtorrent::invalid_handle&) {}
   }
   while (num_resume_data > 0) {
-    std::deque<alert*> alerts;
+    std::vector<alert*> alerts;
     m_alertDispatcher->getPendingAlerts(alerts, 30*1000);
     if (alerts.empty()) {
       std::cerr << " aborting with " << num_resume_data << " outstanding "
@@ -1657,7 +1657,7 @@ void QBtSession::saveFastResumeData() {
       break;
     }
 
-    for (std::deque<alert*>::const_iterator i = alerts.begin(), end = alerts.end(); i != end; ++i)
+    for (std::vector<alert*>::const_iterator i = alerts.begin(), end = alerts.end(); i != end; ++i)
     {
       alert const* a = *i;
       // Saving fastresume data can fail
@@ -2147,7 +2147,7 @@ void QBtSession::sendNotificationEmail(const QTorrentHandle &h) {
 // Read alerts sent by the Bittorrent session
 void QBtSession::readAlerts() {
 
-  typedef std::deque<alert*> alerts_t;
+  typedef std::vector<alert*> alerts_t;
   alerts_t alerts;
   m_alertDispatcher->getPendingAlertsNoWait(alerts);