diff --git a/src/plugins/platforms/wasm/qwasmwindow.cpp b/src/plugins/platforms/wasm/qwasmwindow.cpp
index f7bc2dc4a78..48d01ef6b58 100644
--- a/src/plugins/platforms/wasm/qwasmwindow.cpp
+++ b/src/plugins/platforms/wasm/qwasmwindow.cpp
@@ -407,20 +407,19 @@ void QWasmWindow::requestUpdate()
 
 bool QWasmWindow::hasTitleBar() const
 {
-    auto flags = window()->flags();
+    Qt::WindowFlags flags = window()->flags();
     return !(m_windowState & Qt::WindowFullScreen)
         && flags.testFlag(Qt::WindowTitleHint)
-        && !flags.testFlag(Qt::ToolTip)
+        && !(windowIsPopupType(flags))
         && m_needsCompositor;
 }
 
-bool QWasmWindow::windowIsPopupType(Qt::WindowType type) const
+bool QWasmWindow::windowIsPopupType(Qt::WindowFlags flags) const
 {
-    if (type == Qt::Widget)
-        type = window()->type();
-    if (type != Qt::Tool)
-        return true;
-    return false;
+    if (flags.testFlag(Qt::Tool))
+        return false; // Qt::Tool has the Popup bit set but isn't
+
+    return (flags.testFlag(Qt::Popup));
 }
 
 void QWasmWindow::requestActivateWindow()
diff --git a/src/plugins/platforms/wasm/qwasmwindow.h b/src/plugins/platforms/wasm/qwasmwindow.h
index f99c69fc799..870377ce297 100644
--- a/src/plugins/platforms/wasm/qwasmwindow.h
+++ b/src/plugins/platforms/wasm/qwasmwindow.h
@@ -124,7 +124,7 @@ protected:
     bool m_needsCompositor = false;
     friend class QWasmCompositor;
     friend class QWasmEventTranslator;
-    bool windowIsPopupType(Qt::WindowType type = Qt::Widget) const;
+    bool windowIsPopupType(Qt::WindowFlags flags) const;
 };
 QT_END_NAMESPACE
 #endif // QWASMWINDOW_H