diff --git a/src/plugins/platforms/wasm/qwasmwindow.cpp b/src/plugins/platforms/wasm/qwasmwindow.cpp
index 06d9108866..1fff58c403 100644
--- a/src/plugins/platforms/wasm/qwasmwindow.cpp
+++ b/src/plugins/platforms/wasm/qwasmwindow.cpp
@@ -364,6 +364,7 @@ void QWasmWindow::setWindowFlags(Qt::WindowFlags flags)
                           flags.testFlag(Qt::WindowTransparentForInput));
 
     m_nonClientArea->titleBar()->setMaximizeVisible(hasMaximizeButton());
+    m_nonClientArea->titleBar()->setCloseVisible(m_flags.testFlag(Qt::WindowCloseButtonHint));
 }
 
 void QWasmWindow::setWindowState(Qt::WindowStates newState)
diff --git a/src/plugins/platforms/wasm/qwasmwindownonclientarea.cpp b/src/plugins/platforms/wasm/qwasmwindownonclientarea.cpp
index 304f678add..8650f7a0c9 100644
--- a/src/plugins/platforms/wasm/qwasmwindownonclientarea.cpp
+++ b/src/plugins/platforms/wasm/qwasmwindownonclientarea.cpp
@@ -349,6 +349,11 @@ void TitleBar::setMaximizeVisible(bool visible)
     m_maximize->setVisible(visible);
 }
 
+void TitleBar::setCloseVisible(bool visible)
+{
+    m_close->setVisible(visible);
+}
+
 void TitleBar::setIcon(std::string_view imageData, std::string_view format)
 {
     m_icon->setImage(imageData, format);
diff --git a/src/plugins/platforms/wasm/qwasmwindownonclientarea.h b/src/plugins/platforms/wasm/qwasmwindownonclientarea.h
index 18d1c63f4b..8683fc7e6c 100644
--- a/src/plugins/platforms/wasm/qwasmwindownonclientarea.h
+++ b/src/plugins/platforms/wasm/qwasmwindownonclientarea.h
@@ -176,6 +176,7 @@ public:
     void setTitle(const QString &title);
     void setRestoreVisible(bool visible);
     void setMaximizeVisible(bool visible);
+    void setCloseVisible(bool visible);
     void setIcon(std::string_view imageData, std::string_view format);
     void setWidth(int width);