diff --git a/td.go b/td.go
index 9e86f67..e086b82 100644
--- a/td.go
+++ b/td.go
@@ -96,6 +96,7 @@ func getHistory(c *tdlib.Client, chatID64 *int64, senderUserID64 *int64) {
 	}
 
 	for lastParsedID64 >= 0 {
+		prevLastParsedID64 := lastParsedID64
 		msgs, err := c.GetChatHistory(chat, lastParsedID64, 0, 33, false)
 		if err != nil {
 			if err.Error() == "timeout" {
@@ -158,6 +159,10 @@ func getHistory(c *tdlib.Client, chatID64 *int64, senderUserID64 *int64) {
 		} else {
 			lastParsedID64 = -1
 		}
+		if prevLastParsedID64 == lastParsedID64 {
+			// we should be at the end !
+			lastParsedID64 = -1
+		}
 	}
 	log.Printf("Exported %d messages.\n", msgCount)
 	fmt.Printf("Exported %d messages.\n", msgCount)