diff --git a/backUpIncremental.sh b/backUpIncremental.sh
index 0edc704..4c50142 100755
--- a/backUpIncremental.sh
+++ b/backUpIncremental.sh
@@ -22,7 +22,7 @@ CURRENT_BINLOG=$(mysql -u$userName -p$password -h$host -N -e "SHOW MASTER STATUS
 CURRENT_POSITION=$(mysql -u$userName -p$password -h$host -N -e "SHOW MASTER STATUS" | awk '{print $2}')
 
 if [[ -z "$LAST_BACKUP" ]]; then
-    LAST_BINLOG=$CURRENT_BINLOG
+    LAST_BINLOG="ON.000001"
     LAST_POSITION="0"
 fi
 echo ""
@@ -35,8 +35,8 @@ cd $backUpPath
 #if [ -z "$LAST_BINLOG" ]; then
 #    mysqldump -u $MYSQL_USER -p$MYSQL_PASSWORD -h $MYSQL_HOST $MYSQL_DATABASE > "$BACKUP_DIR/full_backup.sql"
 #else
-    echo "docker exec maria /usr/bin/mysqlbinlog -u"${userName}" -p"${password}" -h"${host}" --start-position="${LAST_BINLOG}" --stop-position="${CURRENT_POSITION}" "$LAST_BINLOG" > "${backUpPath}"/"${dbName}"-"${currentTime}".sql"
-    docker exec maria /usr/bin/mysqlbinlog -u${userName} -p${password} -h${host} --start-position=${LAST_BINLOG} --stop-position=${CURRENT_POSITION} $LAST_BINLOG > ${backUpPath}/${dbName}-${currentTime}.sql
+    echo "docker exec maria /usr/bin/mysqlbinlog -u"${userName}" -p"${password}" -h"${host}" --start-position="${LAST_POSITION}" --stop-position="${CURRENT_POSITION}" "$LAST_BINLOG" > "${backUpPath}"/"${dbName}"-"${currentTime}".sql"
+    docker exec maria /usr/bin/mysqlbinlog -u${userName} -p${password} -h${host} --start-position=${LAST_POSITION} --stop-position=${CURRENT_POSITION} $LAST_BINLOG > ${backUpPath}/${dbName}-${currentTime}.sql
 #fi
 # 更新上次备份的binlog文件名和位置
 echo "$CURRENT_BINLOG $CURRENT_POSITION" > "last_backup.txt"