diff --git a/mozilla/mailnews/base/macbuild/msgCoreIDL.mcp b/mozilla/mailnews/base/macbuild/msgCoreIDL.mcp
index 5749c2c52ea..0431f9aa565 100644
Binary files a/mozilla/mailnews/base/macbuild/msgCoreIDL.mcp and b/mozilla/mailnews/base/macbuild/msgCoreIDL.mcp differ