diff --git a/mailnews/base/macbuild/msgCoreIDL.mcp b/mailnews/base/macbuild/msgCoreIDL.mcp
index 402f833e53e..bf3a10e4bc9 100644
Binary files a/mailnews/base/macbuild/msgCoreIDL.mcp and b/mailnews/base/macbuild/msgCoreIDL.mcp differ