diff --git a/mozilla/xpcom/macbuild/xpcom.exp b/mozilla/xpcom/macbuild/xpcom.exp
index 50baa6dbc04..22a42d83369 100644
--- a/mozilla/xpcom/macbuild/xpcom.exp
+++ b/mozilla/xpcom/macbuild/xpcom.exp
@@ -202,3 +202,5 @@ NS_NewPipe__FPP20nsIBufferInputStreamPP21nsIBufferOutputStreamUiUiiP17nsIBufferO
 NS_NewPipe__FPP14nsIInputStreamPP15nsIOutputStreamiUi
 # nsPipe2.cpp exports.
 NS_NewPipe__FPP20nsIBufferInputStreamPP21nsIBufferOutputStreamP15nsIPipeObserverUiUi
+
+NS_GetLog__FPCcUi
\ No newline at end of file