diff --git a/xmlsecurity/inc/digitalsignaturesdialog.hxx b/xmlsecurity/inc/digitalsignaturesdialog.hxx
index f8ace3d976a6..28ed32ccb098 100644
--- a/xmlsecurity/inc/digitalsignaturesdialog.hxx
+++ b/xmlsecurity/inc/digitalsignaturesdialog.hxx
@@ -74,6 +74,7 @@ private:
     std::unique_ptr<weld::Button>      m_xCloseBtn;
 
     std::shared_ptr<CertificateViewer> m_xViewer;
+    std::shared_ptr<weld::MessageDialog> m_xInfoBox;
 
     DECL_LINK(AdESCompliantCheckBoxHdl, weld::Toggleable&, void);
     DECL_LINK(ViewButtonHdl, weld::Button&, void);
diff --git a/xmlsecurity/source/dialogs/digitalsignaturesdialog.cxx b/xmlsecurity/source/dialogs/digitalsignaturesdialog.cxx
index fc7cf6b2a534..1d40e7562be1 100644
--- a/xmlsecurity/source/dialogs/digitalsignaturesdialog.cxx
+++ b/xmlsecurity/source/dialogs/digitalsignaturesdialog.cxx
@@ -206,6 +206,9 @@ DigitalSignaturesDialog::~DigitalSignaturesDialog()
 {
     if (m_xViewer)
         m_xViewer->response(RET_OK);
+
+    if (m_xInfoBox)
+        m_xInfoBox->response(RET_OK);
 }
 
 bool DigitalSignaturesDialog::Init()
@@ -785,10 +788,13 @@ void DigitalSignaturesDialog::ImplShowSignaturesDetails()
     }
     else
     {
-        std::unique_ptr<weld::MessageDialog> xInfoBox(Application::CreateMessageDialog(m_xDialog.get(),
-                                                      VclMessageType::Info, VclButtonsType::Ok,
-                                                      XsResId(STR_XMLSECDLG_NO_CERT_FOUND)));
-        xInfoBox->run();
+        if (m_xInfoBox)
+            m_xInfoBox->response(RET_OK);
+
+        m_xInfoBox = std::shared_ptr<weld::MessageDialog>(Application::CreateMessageDialog(m_xDialog.get(),
+                                                          VclMessageType::Info, VclButtonsType::Ok,
+                                                          XsResId(STR_XMLSECDLG_NO_CERT_FOUND)));
+        m_xInfoBox->runAsync(m_xInfoBox, [this] (sal_Int32) { m_xInfoBox = nullptr; });
     }
 }