diff --git a/data/aut-num/AS213891 b/data/aut-num/AS213891
index b869d7710..b90266af6 100644
--- a/data/aut-num/AS213891
+++ b/data/aut-num/AS213891
@@ -23,7 +23,7 @@ remarks:            ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 remarks:            |                                                        |
 remarks:            |               * IX Point - Prefix *                    |
 remarks:            |                                                        |
-remarks:            |     172.21.104.128/27	       --   IPv4                 |
+remarks:            |     172.21.104.128/27        --   IPv4                 |
 remarks:            |     fd3b:ed51:c932::/48      --   IPv6                 |
 remarks:            |                                                        |
 remarks:            |               * BGP Large Communities *                |
diff --git a/data/dns/mis1072.dn42 b/data/dns/mis1072.dn42
index 3b42eded0..a508eabf5 100644
--- a/data/dns/mis1072.dn42
+++ b/data/dns/mis1072.dn42
@@ -2,6 +2,6 @@ domain:             mis1072.dn42
 admin-c:            MISAKA10072-DN42
 tech-c:             MISAKA10072-DN42
 mnt-by:             MISAKA10072-MNT
-nserver:            ns.mis1072.dn42	172.21.72.253
-nserver:            ns.mis1072.dn42	fd00:1072:9982:53::1
+nserver:            ns.mis1072.dn42 172.21.72.253
+nserver:            ns.mis1072.dn42 fd00:1072:9982:53::1
 source:             DN42
diff --git a/data/dns/percy.dn42 b/data/dns/percy.dn42
index 8a5588678..141f96116 100644
--- a/data/dns/percy.dn42
+++ b/data/dns/percy.dn42
@@ -2,8 +2,8 @@ domain:             percy.dn42
 admin-c:            PERCY-DN42
 tech-c:             PERCY-DN42
 mnt-by:             PERCY-MNT
-nserver:            ns1.percy.dn42	172.20.202.225
-nserver:            ns1.percy.dn42	fd24:365d:ab1e:53::1
-nserver:            ns2.percy.dn42	172.20.202.226
-nserver:            ns2.percy.dn42	fd24:365d:ab1e:53::2
+nserver:            ns1.percy.dn42 172.20.202.225
+nserver:            ns1.percy.dn42 fd24:365d:ab1e:53::1
+nserver:            ns2.percy.dn42 172.20.202.226
+nserver:            ns2.percy.dn42 fd24:365d:ab1e:53::2
 source:             DN42
diff --git a/data/route/172.23.181.64_26 b/data/route/172.23.181.64_26
index 10ec8b58f..1cbfb8372 100644
--- a/data/route/172.23.181.64_26
+++ b/data/route/172.23.181.64_26
@@ -1,5 +1,5 @@
 route:              172.23.181.64/26
-descr:              HopeNow-IPv4,Peer with me at kuliangcha@qq.com	
+descr:              HopeNow-IPv4,Peer with me at kuliangcha@qq.com
 origin:             AS4242421251
 max-length:         26
 mnt-by:             SHARWORANGE-MNT