diff --git a/src/capture/capturer.cpp b/src/capture/capturer.cpp
index e1a7535..a0466ce 100644
--- a/src/capture/capturer.cpp
+++ b/src/capture/capturer.cpp
@@ -32,7 +32,7 @@ void Capturer::updatePixmap()
   screenRects.reserve(screens.size());
   QRect rect;
 
-  for (const auto screen : screens) {
+  for (const QScreen *screen : screens) {
     const auto geometry = screen->geometry();
     screenRects.push_back(geometry);
     rect |= geometry;
diff --git a/src/manager.cpp b/src/manager.cpp
index 1265b2d..7753cdb 100644
--- a/src/manager.cpp
+++ b/src/manager.cpp
@@ -57,9 +57,6 @@ Manager::Manager()
                    tray_.get(), [this] {
                      tray_->showInformation(QObject::tr("Updates available"));
                    });
-#ifdef DEVELOP
-  updater_->checkForUpdates();
-#endif
 }
 
 Manager::~Manager()
diff --git a/src/ocr/tesseract.cpp b/src/ocr/tesseract.cpp
index fec0df8..504f9bb 100644
--- a/src/ocr/tesseract.cpp
+++ b/src/ocr/tesseract.cpp
@@ -150,7 +150,6 @@ void Tesseract::init(const LanguageId &language, const QString &tessdataPath)
 
   error_ = QObject::tr("troubles with tessdata");
   engine_.reset();
-  return;
 }
 
 const QString &Tesseract::error() const
diff --git a/src/service/globalaction.cpp b/src/service/globalaction.cpp
index 4a6abdb..e2550e4 100644
--- a/src/service/globalaction.cpp
+++ b/src/service/globalaction.cpp
@@ -94,6 +94,7 @@ static int customHandler(Display *display, XErrorEvent *event)
           event->request_code == 34 /* X_UngrabKey */) {
         error = true;
       }
+      [[fallthrough]];
     default: return 0;
   }
 }