diff --git a/src/main.cpp b/src/main.cpp
index f4dfa794b..f9e141f51 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -36,8 +36,12 @@
 #ifndef DISABLE_GUI
 #if defined(QBT_STATIC_QT)
 #include <QtPlugin>
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
+Q_IMPORT_PLUGIN(QICOPlugin)
+#else
 Q_IMPORT_PLUGIN(qico)
 #endif
+#endif
 #include <QMessageBox>
 #include <QStyleFactory>
 #include <QStyle>
diff --git a/src/qtlibtorrent/qbtsession.h b/src/qtlibtorrent/qbtsession.h
index 0c89e6010..c0bf51e0b 100755
--- a/src/qtlibtorrent/qbtsession.h
+++ b/src/qtlibtorrent/qbtsession.h
@@ -30,6 +30,7 @@
 #ifndef __BITTORRENT_H__
 #define __BITTORRENT_H__
 
+#include <QMap>
 #include <QHash>
 #include <QUrl>
 #include <QStringList>
diff --git a/src/tracker/qtracker.cpp b/src/tracker/qtracker.cpp
index fd6349ee2..1b1d419b5 100644
--- a/src/tracker/qtracker.cpp
+++ b/src/tracker/qtracker.cpp
@@ -31,6 +31,9 @@
 #include <QHttpRequestHeader>
 #include <QTcpSocket>
 #include <QUrl>
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
+#include <QUrlQuery>
+#endif
 
 #include <libtorrent/bencode.hpp>
 #include <libtorrent/entry.hpp>
@@ -109,8 +112,13 @@ void QTracker::readRequest()
   // OK, this is a GET request
   // Parse GET parameters
   QHash<QString, QString> get_parameters;
-  QUrl url = QUrl::fromEncoded(http_request.path().toAscii());
+  QUrl url = QUrl::fromEncoded(http_request.path().toLatin1());
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
+  QUrlQuery query(url);
+  QListIterator<QPair<QString, QString> > i(query.queryItems());
+#else
   QListIterator<QPair<QString, QString> > i(url.queryItems());
+#endif
   while (i.hasNext()) {
     QPair<QString, QString> pair = i.next();
     get_parameters[pair.first] = pair.second;
diff --git a/src/webui/httprequestparser.cpp b/src/webui/httprequestparser.cpp
index 3ccf7f602..04ee3870f 100644
--- a/src/webui/httprequestparser.cpp
+++ b/src/webui/httprequestparser.cpp
@@ -31,6 +31,9 @@
 
 #include "httprequestparser.h"
 #include <QUrl>
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
+#include <QUrlQuery>
+#endif
 #include <QDebug>
 
 HttpRequestParser::HttpRequestParser(): m_error(false)
@@ -69,11 +72,16 @@ void HttpRequestParser::writeHeader(const QByteArray& ba) {
   m_error = false;
   // Parse header
   m_header = QHttpRequestHeader(ba);
-  QUrl url = QUrl::fromEncoded(m_header.path().toAscii());
+  QUrl url = QUrl::fromEncoded(m_header.path().toLatin1());
   m_path = url.path();
 
   // Parse GET parameters
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
+  QUrlQuery query(url);
+  QListIterator<QPair<QString, QString> > i(query.queryItems());
+#else
   QListIterator<QPair<QString, QString> > i(url.queryItems());
+#endif
   while (i.hasNext()) {
     QPair<QString, QString> pair = i.next();
     m_getMap[pair.first] = pair.second;
@@ -102,8 +110,14 @@ void HttpRequestParser::writeMessage(const QByteArray& ba) {
   // Parse POST data
   if (m_header.contentType() == "application/x-www-form-urlencoded") {
     QUrl url;
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
+    QString tmp(m_data);
+    QUrlQuery query(tmp);
+    QListIterator<QPair<QString, QString> > i(query.queryItems());
+#else
     url.setEncodedQuery(m_data);
     QListIterator<QPair<QString, QString> > i(url.queryItems());
+#endif
     while (i.hasNext())	{
       QPair<QString, QString> pair = i.next();
       m_postMap[pair.first] = pair.second;