Index: kstars/ekos/profilewizard.cpp
===================================================================
--- kstars/ekos/profilewizard.cpp
+++ kstars/ekos/profilewizard.cpp
@@ -35,18 +35,18 @@
         windiPix->setPixmap(im);
 
     connect(buttonBox, SIGNAL(rejected()), this, SLOT(close()));
-    connect(buttonBox, &QDialogButtonBox::helpRequested, this, [this]() { KStars::Instance()->appHelpActivated(); });
+    connect(buttonBox, &QDialogButtonBox::helpRequested, this, []() { KStars::Instance()->appHelpActivated(); });
     connect(buttonBox, &QDialogButtonBox::clicked, this, [this](QAbstractButton *button) {
         if (button == buttonBox->button(QDialogButtonBox::Reset))
             reset();
     });
 
     connect(discoverEkosB, &QPushButton::clicked, this,
-            [this]() { QDesktopServices::openUrl(QUrl("http://www.indilib.org/about/ekos.html")); });
+            []() { QDesktopServices::openUrl(QUrl("http://www.indilib.org/about/ekos.html")); });
     connect(videoTutorialsB, &QPushButton::clicked, this,
-            [this]() { QDesktopServices::openUrl(QUrl("https://www.youtube.com/user/QAstronomy")); });
+            []() { QDesktopServices::openUrl(QUrl("https://www.youtube.com/user/QAstronomy")); });
     connect(INDIInfoB, &QPushButton::clicked, this,
-            [this]() { QDesktopServices::openUrl(QUrl("http://indilib.org/about/discover-indi.html")); });
+            []() { QDesktopServices::openUrl(QUrl("http://indilib.org/about/discover-indi.html")); });
 
     // Intro actions
     connect(introNextB, &QPushButton::clicked, this,
Index: kstars/skyqpainter.cpp
===================================================================
--- kstars/skyqpainter.cpp
+++ kstars/skyqpainter.cpp
@@ -763,7 +763,7 @@
                 psize *= 2.;
             if (size > 100.)
                 psize *= 2.;
-            auto putDot = [this, psize, &lambdaDrawEllipse](float x, float y) {
+            auto putDot = [psize, &lambdaDrawEllipse](float x, float y) {
                 lambdaDrawEllipse(x - psize / 2., y - psize / 2., psize, psize);
             };
             putDot(xa, y1);