diff --git a/mozilla/intl/uconv/ucvtw2/nsUCvTW2CID.h b/mozilla/intl/uconv/ucvtw2/nsUCvTW2CID.h
index 9c1fb09f5eb..ffa81b6a60b 100644
--- a/mozilla/intl/uconv/ucvtw2/nsUCvTW2CID.h
+++ b/mozilla/intl/uconv/ucvtw2/nsUCvTW2CID.h
@@ -43,4 +43,29 @@ NS_DECLARE_ID(kUnicodeToCNS11643p1CID,
 NS_DECLARE_ID(kUnicodeToCNS11643p2CID, 
 0xba615198, 0x1dfa, 0x11d3, 0xb3, 0xbf, 0x0, 0x80, 0x5f, 0x8a, 0x66, 0x70);
 
+// Class ID for our UnicodeToCNS11643p3 charset converter
+NS_DECLARE_ID(kUnicodeToCNS11643p3CID, 
+// {9416BFB5-1F93-11d3-B3BF-00805F8A6670}
+0x9416bfb5, 0x1f93, 0x11d3, 0xb3, 0xbf, 0x0, 0x80, 0x5f, 0x8a, 0x66, 0x70);
+
+// Class ID for our UnicodeToCNS11643p4 charset converter
+NS_DECLARE_ID(kUnicodeToCNS11643p4CID, 
+// {9416BFB6-1F93-11d3-B3BF-00805F8A6670}
+0x9416bfb6, 0x1f93, 0x11d3, 0xb3, 0xbf, 0x0, 0x80, 0x5f, 0x8a, 0x66, 0x70);
+
+// Class ID for our UnicodeToCNS11643p5 charset converter
+NS_DECLARE_ID(kUnicodeToCNS11643p5CID, 
+// {9416BFB7-1F93-11d3-B3BF-00805F8A6670}
+0x9416bfb7, 0x1f93, 0x11d3, 0xb3, 0xbf, 0x0, 0x80, 0x5f, 0x8a, 0x66, 0x70);
+
+// Class ID for our UnicodeToCNS11643p6 charset converter
+NS_DECLARE_ID(kUnicodeToCNS11643p6CID, 
+// {9416BFB8-1F93-11d3-B3BF-00805F8A6670}
+0x9416bfb8, 0x1f93, 0x11d3, 0xb3, 0xbf, 0x0, 0x80, 0x5f, 0x8a, 0x66, 0x70);
+
+// Class ID for our UnicodeToCNS11643p7 charset converter
+NS_DECLARE_ID(kUnicodeToCNS11643p7CID, 
+// {9416BFB9-1F93-11d3-B3BF-00805F8A6670}
+0x9416bfb9, 0x1f93, 0x11d3, 0xb3, 0xbf, 0x0, 0x80, 0x5f, 0x8a, 0x66, 0x70);
+
 #endif /* nsUCvTW2CID_h___ */