diff --git a/sql.go b/sql.go
index 8932cf3..9afa1a9 100644
--- a/sql.go
+++ b/sql.go
@@ -6,6 +6,8 @@ import (
 	"log"
 	"regexp"
 	"strconv"
+
+	"github.com/go-sql-driver/mysql"
 )
 
 func initDB() {
@@ -659,7 +661,12 @@ func insertMsgTributesStats(m *ChatWarsMessageTributesStatsAck) error {
 
 	for _, t := range m.Tributes {
 		_, err = stmt.Exec(m.Msg.TGUserID64, t.ItemID64, t.Quantity, t.Exp, t.Date)
-		logOnError(err, "insertMsgTributesStats Exec")
+		mysqlerr, ok := err.(*mysql.MySQLError)
+		if ok && mysqlerr.Number == 1062 {
+			// duplicate, expected
+		} else {
+			logOnError(err, "insertMsgTributesStats Exec")
+		}
 	}
 
 	return nil