diff --git a/xpcom/macbuild/xpcom.exp b/xpcom/macbuild/xpcom.exp
index 72ae08be3d89..fa1c60b01fba 100644
--- a/xpcom/macbuild/xpcom.exp
+++ b/xpcom/macbuild/xpcom.exp
@@ -28,7 +28,7 @@ Remove__11nsHashtableFP9nsHashKey		# nsHashtable::Remove(nsHashKey*)
 Get__11nsHashtableFP9nsHashKey		# nsHashtable::Get(nsHashKey*)
 Put__11nsHashtableFP9nsHashKeyPv		# nsHashtable::Put(nsHashKey*,void*)
 __dt__11nsHashtableFv		# nsHashtable::~nsHashtable()
-__ct__11nsHashtableFUi		# nsHashtable::nsHashtable(unsigned int)
+__ct__11nsHashtableFUii		# nsHashtable::nsHashtable(unsigned int, PRBool)
 __dt__9nsHashKeyFv		# nsHashKey::~nsHashKey()
 __ct__9nsHashKeyFv		# nsHashKey::nsHashKey()
 Warning__7nsDebugFPCcPCci		# nsDebug::Warning(const char*,const char*,int)