diff --git a/mozilla/mailnews/base/macbuild/msgCoreIDL.mcp b/mozilla/mailnews/base/macbuild/msgCoreIDL.mcp
index a54dfd1b1a9..64455dfe9b8 100644
Binary files a/mozilla/mailnews/base/macbuild/msgCoreIDL.mcp and b/mozilla/mailnews/base/macbuild/msgCoreIDL.mcp differ