diff --git a/td.go b/td.go
index 0ff0488..77b13e6 100644
--- a/td.go
+++ b/td.go
@@ -72,7 +72,7 @@ func getHistory(c *tdlib.Client, chatID64 *int64, senderUserID64 *int64) {
 	var msgCount int32 = 0
 	var lastMsgTime time.Time = time.Now()
 
-	if chatID64 == 0 {
+	if &chatID64 == 0 {
 		chat := user_chtwrsbot
 	} else {
 		chat = chatID64