diff --git a/data/inetnum/172.20.158.96_27 b/data/inetnum/172.20.158.96_27
index 78d0bd0e8..e5259a989 100644
--- a/data/inetnum/172.20.158.96_27
+++ b/data/inetnum/172.20.158.96_27
@@ -1,4 +1,5 @@
 inetnum:            172.20.158.96 - 172.20.158.127
+cidr:               172.20.158.96/27
 netname:            BLK-NETWORK
 descr:              Network of BLK
 country:            ID
@@ -6,4 +7,4 @@ admin-c:            BLK-DN42
 tech-c:             BLK-DN42
 mnt-by:             BLK-MNT
 status:             ASSIGNED
-source:             DN42
\ No newline at end of file
+source:             DN42