diff --git a/src/plugins/platforms/cocoa/qcocoamessagedialog.h b/src/plugins/platforms/cocoa/qcocoamessagedialog.h
index 564dd915c5a..b8c273469a3 100644
--- a/src/plugins/platforms/cocoa/qcocoamessagedialog.h
+++ b/src/plugins/platforms/cocoa/qcocoamessagedialog.h
@@ -28,6 +28,7 @@ private:
     Qt::WindowModality modality() const;
     NSAlert *m_alert = nullptr;
     QEventLoop *m_eventLoop = nullptr;
+    NSModalResponse runModal() const;
     void processResponse(NSModalResponse response);
 };
 
diff --git a/src/plugins/platforms/cocoa/qcocoamessagedialog.mm b/src/plugins/platforms/cocoa/qcocoamessagedialog.mm
index e058450ebd5..56c3fceed25 100644
--- a/src/plugins/platforms/cocoa/qcocoamessagedialog.mm
+++ b/src/plugins/platforms/cocoa/qcocoamessagedialog.mm
@@ -222,7 +222,7 @@ bool QCocoaMessageDialog::show(Qt::WindowFlags windowFlags, Qt::WindowModality w
             if (m_alert && NSApp.modalWindow != m_alert.window) {
                 qCDebug(lcQpaDialogs) << "Running deferred modal" << m_alert;
                 QCocoaEventDispatcher::clearCurrentThreadCocoaEventDispatcherInterruptFlag();
-                processResponse([m_alert runModal]);
+                processResponse(runModal());
             }
         });
     }
@@ -230,6 +230,20 @@ bool QCocoaMessageDialog::show(Qt::WindowFlags windowFlags, Qt::WindowModality w
     return true;
 }
 
+// We shouldn't get NSModalResponseContinue as a response from NSAlert::runModal,
+// and processResponse must not be called with that value (if we are there, it's
+// too late to do anything about it.
+// However, as QTBUG-114546 shows, there are scenarios where we might get that
+// response anyway. We interpret it to keep the modal loop running, and we only
+// return if we got something else to pass to processResponse.
+NSModalResponse QCocoaMessageDialog::runModal() const
+{
+    NSModalResponse response = NSModalResponseContinue;
+    while (response == NSModalResponseContinue)
+        response = [m_alert runModal];
+    return response;
+}
+
 void QCocoaMessageDialog::exec()
 {
     Q_ASSERT(m_alert);
@@ -242,7 +256,7 @@ void QCocoaMessageDialog::exec()
     } else {
         qCDebug(lcQpaDialogs) << "Running modal" << m_alert;
         QCocoaEventDispatcher::clearCurrentThreadCocoaEventDispatcherInterruptFlag();
-        processResponse([m_alert runModal]);
+        processResponse(runModal());
     }
 }