diff --git a/src/plugins/clangtools/diagnosticconfigswidget.cpp b/src/plugins/clangtools/diagnosticconfigswidget.cpp
index c9fbfa1bd7f..3d3ca943a7e 100644
--- a/src/plugins/clangtools/diagnosticconfigswidget.cpp
+++ b/src/plugins/clangtools/diagnosticconfigswidget.cpp
@@ -808,7 +808,8 @@ private:
         }
     }
 
-    QModelIndex indexForCheck(const QString &check) const {
+    QModelIndex indexForCheck(const QString &check) const override
+    {
         if (check == "*")
             return index(0, 0, QModelIndex());
 
diff --git a/tests/auto/valgrind/memcheck/modeldemo.cpp b/tests/auto/valgrind/memcheck/modeldemo.cpp
index eec6c16ae81..04735fc5f40 100644
--- a/tests/auto/valgrind/memcheck/modeldemo.cpp
+++ b/tests/auto/valgrind/memcheck/modeldemo.cpp
@@ -5,6 +5,7 @@
 #include <utils/launcherinterface.h>
 #include <utils/temporarydirectory.h>
 
+#include <valgrind/valgrindprocess.h>
 #include <valgrind/xmlprotocol/frame.h>
 #include <valgrind/xmlprotocol/parser.h>
 #include <valgrind/xmlprotocol/stack.h>
@@ -32,7 +33,7 @@ int main(int argc, char *argv[])
     ValgrindProcess runner;
     runner.setValgrindCommand({VALGRIND_FAKE_PATH,
                               {"-i", PARSERTESTS_DATA_DIR "/memcheck-output-sample1.xml"}});
-    ModelDemo demo(&runner);
+    ModelDemo demo;
     QObject::connect(&runner, &ValgrindProcess::processErrorReceived, &app, [](const QString &err) {
         qDebug() << err;
     });
diff --git a/tests/auto/valgrind/memcheck/modeldemo.h b/tests/auto/valgrind/memcheck/modeldemo.h
index 6694bc57fe1..227f859c9db 100644
--- a/tests/auto/valgrind/memcheck/modeldemo.h
+++ b/tests/auto/valgrind/memcheck/modeldemo.h
@@ -12,17 +12,14 @@
 #include <valgrind/xmlprotocol/error.h>
 #include <valgrind/xmlprotocol/errorlistmodel.h>
 #include <valgrind/xmlprotocol/stackmodel.h>
-#include <valgrind/valgrindprocess.h>
 
 class ModelDemo : public QObject
 {
     Q_OBJECT
 public:
-    explicit ModelDemo(Valgrind::ValgrindProcess *r, QObject *parent = 0)
+    explicit ModelDemo(QObject *parent = 0)
         : QObject(parent)
-        , runner(r)
-    {
-    }
+    {}
 
     Valgrind::XmlProtocol::StackModel* stackModel;
 
@@ -35,7 +32,4 @@ public Q_SLOTS:
         qDebug() << idx.row() << err.what();
         stackModel->setError(err);
     }
-
-private:
-    Valgrind::ValgrindProcess *runner;
 };