diff --git a/cli/application.h b/cli/application.h
index 49c3c13..ba4edec 100644
--- a/cli/application.h
+++ b/cli/application.h
@@ -43,7 +43,7 @@ public:
 
     int exec(int argc, const char *const *argv);
 
-private slots:
+private Q_SLOTS:
     void handleStatusChanged(Data::SyncthingStatus newStatus);
     void handleResponse();
     void handleError(
diff --git a/cli/jsconsole.h b/cli/jsconsole.h
index 359fda8..6568800 100644
--- a/cli/jsconsole.h
+++ b/cli/jsconsole.h
@@ -9,7 +9,7 @@ class JSConsole : public QObject
 public:
     explicit JSConsole(QObject *parent = nullptr);
 
-public slots:
+public Q_SLOTS:
     void log(const QString &msg) const;
 };
 
diff --git a/tray/gui/trayicon.h b/tray/gui/trayicon.h
index 6e0512e..10ded30 100644
--- a/tray/gui/trayicon.h
+++ b/tray/gui/trayicon.h
@@ -31,7 +31,7 @@ public:
     TrayIcon(const QString &connectionConfig = QString(), QObject *parent = nullptr);
     TrayMenu &trayMenu();
 
-public slots:
+public Q_SLOTS:
     void showInternalError(const QString &errorMessage, Data::SyncthingErrorCategory category, int networkError, const QNetworkRequest &request,
         const QByteArray &response);
     void showLauncherError(const QString &errorMessage, const QString &additionalInfo);
@@ -41,7 +41,7 @@ public slots:
     void showNewDev(const QString &devId, const QString &message);
     void showNewDir(const QString &devId, const QString &dirId, const QString &message);
 
-private slots:
+private Q_SLOTS:
     void handleActivated(QSystemTrayIcon::ActivationReason reason);
     void handleMessageClicked();
     void showDisconnected();
diff --git a/tray/gui/traymenu.h b/tray/gui/traymenu.h
index 18febb3..725e221 100644
--- a/tray/gui/traymenu.h
+++ b/tray/gui/traymenu.h
@@ -19,7 +19,7 @@ public:
     const TrayWidget &widget() const;
     TrayIcon *icon();
 
-public slots:
+public Q_SLOTS:
     void showUsingPositioningSettings();
 
 private:
diff --git a/tray/gui/traywidget.h b/tray/gui/traywidget.h
index 9b028fe..7f821f6 100644
--- a/tray/gui/traywidget.h
+++ b/tray/gui/traywidget.h
@@ -55,7 +55,7 @@ public:
     QMenu *connectionsMenu();
     static const std::vector<TrayWidget *> &instances();
 
-public slots:
+public Q_SLOTS:
     void showSettingsDialog();
     void showAboutDialog();
     void showWebUi();
@@ -72,7 +72,7 @@ public slots:
     void quitTray();
     void applySettings(const QString &connectionConfig = QString());
 
-private slots:
+private Q_SLOTS:
     void handleStatusChanged(Data::SyncthingStatus status);
 #ifdef SYNCTHINGTRAY_UNIFY_TRAY_MENUS
     void handleErrorsCleared();
diff --git a/widgets/settings/settingsdialog.h b/widgets/settings/settingsdialog.h
index 0efaf14..bb3655a 100644
--- a/widgets/settings/settingsdialog.h
+++ b/widgets/settings/settingsdialog.h
@@ -109,7 +109,7 @@ public:
     bool apply() override;
     void reset() override;
 
-private slots:
+private Q_SLOTS:
     void handleSyncthingLaunched(bool running);
     void handleSyncthingReadyRead();
     void handleSyncthingOutputAvailable(const QByteArray &output);
diff --git a/widgets/webview/webpage.h b/widgets/webview/webpage.h
index 1a6325b..daba687 100644
--- a/widgets/webview/webpage.h
+++ b/widgets/webview/webpage.h
@@ -39,7 +39,7 @@ protected:
     void javaScriptConsoleMessage(const QString &message, int lineNumber, const QString &sourceID) override;
 #endif
 
-private slots:
+private Q_SLOTS:
     void delegateNewWindowToExternalBrowser(const QUrl &url);
     void supplyCredentials(const QUrl &requestUrl, QAuthenticator *authenticator);
     void supplyCredentials(QNetworkReply *reply, QAuthenticator *authenticator);
diff --git a/widgets/webview/webviewdialog.h b/widgets/webview/webviewdialog.h
index 34f8672..e3c3ed9 100644
--- a/widgets/webview/webviewdialog.h
+++ b/widgets/webview/webviewdialog.h
@@ -23,7 +23,7 @@ public:
     WebViewDialog(QWidget *parent = nullptr);
     ~WebViewDialog() override;
 
-public slots:
+public Q_SLOTS:
     void applySettings(const Data::SyncthingConnectionSettings &connectionSettings, bool aboutToShow);
     const Data::SyncthingConnectionSettings &connectionSettings() const;
 #if defined(SYNCTHINGWIDGETS_USE_WEBKIT)