diff --git a/src/lib/gui/MainWindow.cpp b/src/lib/gui/MainWindow.cpp
index 0cfbe93e9..b3f2e6b5a 100644
--- a/src/lib/gui/MainWindow.cpp
+++ b/src/lib/gui/MainWindow.cpp
@@ -523,8 +523,14 @@ void MainWindow::showMyFingerprint()
   fingerprintDialog.exec();
 }
 
-void MainWindow::coreModeToggled()
+void MainWindow::coreModeToggled(bool checked)
 {
+  // this method is called when rbClient or rbServer toggles
+  // with both being in the same group one must be turned on if the other is turned off
+  // only react to toggle on to avoid calling everything twice when the user switches modes
+  if (!checked)
+    return;
+
   auto serverMode = ui->rbModeServer->isChecked();
 
   const auto mode = serverMode ? QStringLiteral("server enabled") : QStringLiteral("client enabled");
diff --git a/src/lib/gui/MainWindow.h b/src/lib/gui/MainWindow.h
index 0ffacfbf2..7134dbc19 100644
--- a/src/lib/gui/MainWindow.h
+++ b/src/lib/gui/MainWindow.h
@@ -124,7 +124,7 @@ private:
   void updateSecurityIcon(bool visible);
   void updateNetworkInfo();
 
-  void coreModeToggled();
+  void coreModeToggled(bool checked);
   void updateModeControls(bool serverMode);
   void updateModeControlLabels();
   std::unique_ptr<Ui::MainWindow> ui;