diff --git a/mozilla/mailnews/base/macbuild/msgCoreIDL.mcp b/mozilla/mailnews/base/macbuild/msgCoreIDL.mcp
index 82e1e46ff5a..694f2c8be07 100644
Binary files a/mozilla/mailnews/base/macbuild/msgCoreIDL.mcp and b/mozilla/mailnews/base/macbuild/msgCoreIDL.mcp differ