diff --git a/WebCore/css/CSSStyleSheet.cpp b/WebCore/css/CSSStyleSheet.cpp
index 863e2fb..74947a2 100644
--- a/WebCore/css/CSSStyleSheet.cpp
+++ b/WebCore/css/CSSStyleSheet.cpp
@@ -176,7 +176,7 @@
         return;
     if (parent())
         parent()->checkLoaded();
-    m_loadCompleted = m_parentNode ? m_parentNode->sheetLoaded() : true;
+    m_loadCompleted = ownerNode() ? ownerNode()->sheetLoaded() : true;
 }
 
 DocLoader *CSSStyleSheet::docLoader()