diff --git a/Source/JavaScriptCore/ChangeLog b/Source/JavaScriptCore/ChangeLog
index be6af239955d2f93eae423546778746c12404109..26fd82d13bf3e9b44dbec06d82cef1c803e022a1 100644
--- a/Source/JavaScriptCore/ChangeLog
+++ b/Source/JavaScriptCore/ChangeLog
@@ -1,3 +1,14 @@
+2012-01-06  Hajime Morrita  <morrita@chromium.org>
+
+        https://bugs.webkit.org/show_bug.cgi?id=75296
+        JSString should not have JS_EXPORTCLASS annotation
+
+        Reviewed by Kevin Ollivier.
+
+        * runtime/JSString.h: Removed JS_EXPORTCLASS annotation.
+        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.def:
+        Added missing symbols which were hidden by JS_EXPORTCLASS.
+
 2012-01-06  Michael Saboff  <msaboff@apple.com>
 
         JSArray::pop() should compare SparseArrayValueMap::find() to SparseArrayValueMap::notFound()
diff --git a/Source/JavaScriptCore/JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.def b/Source/JavaScriptCore/JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.def
index 9ee61eaab14bb6a390bf114937127bb7928e0939..71eed26b3694d948ebc898ddee315f11c06a460d 100644
--- a/Source/JavaScriptCore/JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.def
+++ b/Source/JavaScriptCore/JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.def
@@ -296,6 +296,7 @@ EXPORTS
     ?retrieveLastCaller@Interpreter@JSC@@QBEXPAVExecState@2@AAH1AAVUString@2@AAVJSValue@2@@Z
     ?s_globalObjectMethodTable@JSGlobalObject@JSC@@1UGlobalObjectMethodTable@2@B
     ?s_info@ExecutableBase@JSC@@2UClassInfo@2@B
+    ?s_info@JSString@JSC@@2UClassInfo@2@B
     ?setConfigurable@PropertyDescriptor@JSC@@QAEX_N@Z
     ?setDescriptor@PropertyDescriptor@JSC@@QAEXVJSValue@2@I@Z
     ?setDumpsGeneratedCode@BytecodeGenerator@JSC@@SAX_N@Z
@@ -336,6 +337,7 @@ EXPORTS
     ?timedWait@ThreadCondition@WTF@@QAE_NAAVMutex@2@N@Z
     ?tlsKeyCount@WTF@@YAAAJXZ
     ?tlsKeys@WTF@@YAPAKXZ
+    ?toBoolean@JSString@JSC@@QBE_NPAVExecState@2@@Z
     ?toInt32@JSC@@YAHN@Z
     ?toInteger@JSValue@JSC@@QBENPAVExecState@2@@Z
     ?toNumberSlowCase@JSValue@JSC@@ABENPAVExecState@2@@Z
diff --git a/Source/JavaScriptCore/runtime/JSString.h b/Source/JavaScriptCore/runtime/JSString.h
index 6700e2e410c8f65770e70f487ec36b68e658b573..f4045557147db0f29b8eeb6c781469496720fe24 100644
--- a/Source/JavaScriptCore/runtime/JSString.h
+++ b/Source/JavaScriptCore/runtime/JSString.h
@@ -59,7 +59,7 @@ namespace JSC {
 
     JSString* jsStringBuilder(JSGlobalData*);
 
-    class JS_EXPORTCLASS JSString : public JSCell {
+    class JSString : public JSCell {
     public:
         friend class JIT;
         friend class JSGlobalData;