diff --git a/src/msw/webview_ie.cpp b/src/msw/webview_ie.cpp
index cc85f27c5b..96847b1a01 100644
--- a/src/msw/webview_ie.cpp
+++ b/src/msw/webview_ie.cpp
@@ -1773,7 +1773,7 @@ HRESULT STDMETHODCALLTYPE VirtualProtocol::ParseUrl(
             case wxPARSE_SECURITY_URL:
             case wxPARSE_SECURITY_DOMAIN:
             {
-                if ( cchResult <= secLen )
+                if ( cchResult < secLen )
                     return S_FALSE;
                 wcscpy(pwzResult, m_handler->GetSecurityURL().wc_str());
                 *pcchResult = secLen;