diff --git a/mozilla/content/html/style/src/nsCSSLoader.cpp b/mozilla/content/html/style/src/nsCSSLoader.cpp
index 636a3a92d50..96cb97303ff 100644
--- a/mozilla/content/html/style/src/nsCSSLoader.cpp
+++ b/mozilla/content/html/style/src/nsCSSLoader.cpp
@@ -455,9 +455,7 @@ SheetLoadData::~SheetLoadData(void)
   NS_IF_RELEASE(mParserToUnblock);
   NS_IF_RELEASE(mParentSheet);
   NS_IF_RELEASE(mObserver);
-  if (mNext) {
-    delete mNext;
-  }
+  NS_IF_RELEASE(mNext);
 }
 
 CSSLoaderImpl::CSSLoaderImpl(void)
diff --git a/mozilla/layout/html/style/src/nsCSSLoader.cpp b/mozilla/layout/html/style/src/nsCSSLoader.cpp
index 636a3a92d50..96cb97303ff 100644
--- a/mozilla/layout/html/style/src/nsCSSLoader.cpp
+++ b/mozilla/layout/html/style/src/nsCSSLoader.cpp
@@ -455,9 +455,7 @@ SheetLoadData::~SheetLoadData(void)
   NS_IF_RELEASE(mParserToUnblock);
   NS_IF_RELEASE(mParentSheet);
   NS_IF_RELEASE(mObserver);
-  if (mNext) {
-    delete mNext;
-  }
+  NS_IF_RELEASE(mNext);
 }
 
 CSSLoaderImpl::CSSLoaderImpl(void)
diff --git a/mozilla/layout/style/nsCSSLoader.cpp b/mozilla/layout/style/nsCSSLoader.cpp
index 636a3a92d50..96cb97303ff 100644
--- a/mozilla/layout/style/nsCSSLoader.cpp
+++ b/mozilla/layout/style/nsCSSLoader.cpp
@@ -455,9 +455,7 @@ SheetLoadData::~SheetLoadData(void)
   NS_IF_RELEASE(mParserToUnblock);
   NS_IF_RELEASE(mParentSheet);
   NS_IF_RELEASE(mObserver);
-  if (mNext) {
-    delete mNext;
-  }
+  NS_IF_RELEASE(mNext);
 }
 
 CSSLoaderImpl::CSSLoaderImpl(void)