--- a/plugins/mod_csi_simple.lua	Sun Jan 06 21:08:11 2019 +0100
+++ b/plugins/mod_csi_simple.lua	Sun Jan 06 21:09:50 2019 +0100
@@ -66,6 +66,10 @@
 		if stanza:get_child("sent", "urn:xmpp:carbons:2") then
 			return true;
 		end
+		local forwarded = stanza:find("{urn:xmpp:carbons:2}received/{urn:xmpp:forward:0}/{jabber:client}message");
+		if forwarded then
+			stanza = forwarded;
+		end
 		if stanza:get_child("body") then
 			return true;
 		end