diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8fd265c82..0c57981a9 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -53,6 +53,10 @@ set(EXE_NAME ${APP_LOW_NAME})
 option(USE_QT_5 "Use Qt 5 for building" OFF)
 option(BUNDLE_ICON_THEMES "Equip installation with custom icon themes" ON)
 
+if(POLICY CMP0012)
+  cmake_policy(SET CMP0012 NEW)
+endif()
+
 if(${USE_QT_5})
   cmake_minimum_required(VERSION 2.8.10)
 else(${USE_QT_5})
diff --git a/src/gui/messagesview.cpp b/src/gui/messagesview.cpp
index 6b6492819..552610470 100644
--- a/src/gui/messagesview.cpp
+++ b/src/gui/messagesview.cpp
@@ -230,7 +230,11 @@ void MessagesView::openSelectedSourceArticlesExternally() {
   foreach (const QModelIndex &index, selectionModel()->selectedRows()) {
     QString link = m_sourceModel->messageAt(m_proxyModel->mapToSource(index).row()).m_url;
 
+#if defined(Q_OS_LINUX)
     if (!QProcess::startDetached(browser + ' ' + arguments.arg(link))) {
+#else
+    if (!QProcess::startDetached('\"' + browser + '\"' + ' ' + arguments.arg(link))) {
+#endif
       QMessageBox::critical(this,
                             tr("Problem with starting external web browser"),
                             tr("External web browser could not be started."),