1 files changed, 7 insertions, 0 deletions
diff --git a/Source/WebCore/css/CSSRuleList.cpp b/Source/WebCore/css/CSSRuleList.cpp
index 0a312af..da65632 100644
--- a/Source/WebCore/css/CSSRuleList.cpp
+++ b/Source/WebCore/css/CSSRuleList.cpp
@@ -22,8 +22,10 @@
 #include "config.h"
 #include "CSSRuleList.h"
 
+#include "CSSMutableStyleDeclaration.h"
 #include "CSSRule.h"
 #include "StyleList.h"
+#include "WebKitCSSKeyframeRule.h"
 
 namespace WebCore {
 
@@ -76,6 +78,11 @@ void CSSRuleList::deleteRule(unsigned index)
         return;
     }
 
+    if (m_lstCSSRules[index]->isKeyframeRule()) {
+        if (CSSMutableStyleDeclaration* style = static_cast<WebKitCSSKeyframeRule*>(m_lstCSSRules[index].get())->style())
+            style->setParent(0);
+    }
+
     m_lstCSSRules[index]->setParent(0);
     m_lstCSSRules.remove(index);
 }