diff --git a/cui/source/dialogs/SignSignatureLineDialog.cxx b/cui/source/dialogs/SignSignatureLineDialog.cxx
index 8cc06d90a4eb..641a4fb10c68 100644
--- a/cui/source/dialogs/SignSignatureLineDialog.cxx
+++ b/cui/source/dialogs/SignSignatureLineDialog.cxx
@@ -142,6 +142,7 @@ void SignSignatureLineDialog::Apply()
     if (!m_xSelectedCertifate.is())
     {
         SAL_WARN("cui.dialogs", "No certificate selected!");
+        return;
     }
 
     SfxObjectShell* pShell = SfxObjectShell::Current();