diff --git a/src/plugins/projectexplorer/ioutputparser.cpp b/src/plugins/projectexplorer/ioutputparser.cpp
index 4ad9fd7194c..0ba7e466a6e 100644
--- a/src/plugins/projectexplorer/ioutputparser.cpp
+++ b/src/plugins/projectexplorer/ioutputparser.cpp
@@ -123,10 +123,6 @@
 
 namespace ProjectExplorer {
 
-IOutputParser::IOutputParser() : m_parser(0)
-{
-}
-
 IOutputParser::~IOutputParser()
 {
     delete m_parser;
@@ -142,19 +138,15 @@ void IOutputParser::appendOutputParser(IOutputParser *parser)
     }
 
     m_parser = parser;
-    connect(parser, SIGNAL(addOutput(QString,ProjectExplorer::BuildStep::OutputFormat)),
-            this, SLOT(outputAdded(QString,ProjectExplorer::BuildStep::OutputFormat)), Qt::DirectConnection);
-    connect(parser, SIGNAL(addTask(ProjectExplorer::Task, int, int)),
-            this, SLOT(taskAdded(ProjectExplorer::Task, int, int)), Qt::DirectConnection);
+    connect(parser, &IOutputParser::addOutput, this, &IOutputParser::outputAdded, Qt::DirectConnection);
+    connect(parser, &IOutputParser::addTask, this, &IOutputParser::taskAdded, Qt::DirectConnection);
 }
 
 IOutputParser *IOutputParser::takeOutputParserChain()
 {
     IOutputParser *parser = m_parser;
-    disconnect(parser, SIGNAL(addOutput(QString,ProjectExplorer::BuildStep::OutputFormat)),
-               this, SLOT(outputAdded(QString,ProjectExplorer::BuildStep::OutputFormat)));
-    disconnect(parser, SIGNAL(addTask(ProjectExplorer::Task, int, int)),
-               this, SLOT(taskAdded(ProjectExplorer::Task, int, int)));
+    disconnect(parser, &IOutputParser::addOutput, this, &IOutputParser::outputAdded);
+    disconnect(parser, &IOutputParser::addTask, this, &IOutputParser::taskAdded);
     m_parser = 0;
     return parser;
 }
@@ -169,6 +161,8 @@ void IOutputParser::setChildParser(IOutputParser *parser)
     if (m_parser != parser)
         delete m_parser;
     m_parser = parser;
+    connect(parser, &IOutputParser::addOutput, this, &IOutputParser::outputAdded, Qt::DirectConnection);
+    connect(parser, &IOutputParser::addTask, this, &IOutputParser::taskAdded, Qt::DirectConnection);
 }
 
 void IOutputParser::stdOutput(const QString &line)
diff --git a/src/plugins/projectexplorer/ioutputparser.h b/src/plugins/projectexplorer/ioutputparser.h
index 095f9c79e19..03b8468b661 100644
--- a/src/plugins/projectexplorer/ioutputparser.h
+++ b/src/plugins/projectexplorer/ioutputparser.h
@@ -39,7 +39,7 @@ class PROJECTEXPLORER_EXPORT IOutputParser : public QObject
 {
     Q_OBJECT
 public:
-    IOutputParser();
+    IOutputParser() = default;
     ~IOutputParser();
 
     virtual void appendOutputParser(IOutputParser *parser);
@@ -71,7 +71,7 @@ public slots:
 private:
     virtual void doFlush();
 
-    IOutputParser *m_parser;
+    IOutputParser *m_parser = 0;
 };
 
 } // namespace ProjectExplorer