diff --git a/src/modules/chathistory.c b/src/modules/chathistory.c
index 5f6965027..4be884ed9 100644
--- a/src/modules/chathistory.c
+++ b/src/modules/chathistory.c
@@ -48,6 +48,7 @@ MOD_INIT()
 MOD_LOAD()
 {
 	ISupportSetFmt(modinfo->handle, "CHATHISTORY", "%d", CHATHISTORY_LIMIT);
+	ISupportSetFmt(modinfo->handle, "MSGREFTYPES", "msgid,timestamp");
 	return MOD_SUCCESS;
 }