diff --git a/scripts/asn-to-prefix.nse b/scripts/asn-to-prefix.nse
index 4f7bd82d0..f4792c12e 100644
--- a/scripts/asn-to-prefix.nse
+++ b/scripts/asn-to-prefix.nse
@@ -28,7 +28,7 @@ http://www.shadowserver.org/wiki/pmwiki.php/Services/IP-BGP
 author = "John Bond"
 license = "Simplified (2-clause) BSD license--See http://nmap.org/svn/docs/licenses/BSD-simplified"
 
-categories = {"discovery"}
+categories = {"discovery", "external", "safe"}
 
 require "stdnse"
 require "shortport"
diff --git a/scripts/script.db b/scripts/script.db
index 9ea9fd894..40f1282da 100644
--- a/scripts/script.db
+++ b/scripts/script.db
@@ -6,7 +6,7 @@ Entry { filename = "afp-serverinfo.nse", categories = { "default", "discovery",
 Entry { filename = "afp-showmount.nse", categories = { "discovery", "safe", } }
 Entry { filename = "amqp-info.nse", categories = { "default", "discovery", "safe", "version", } }
 Entry { filename = "asn-query.nse", categories = { "discovery", "external", "safe", } }
-Entry { filename = "asn-to-prefix.nse", categories = { "discovery", } }
+Entry { filename = "asn-to-prefix.nse", categories = { "discovery", "external", "safe", } }
 Entry { filename = "auth-owners.nse", categories = { "default", "safe", } }
 Entry { filename = "auth-spoof.nse", categories = { "malware", "safe", } }
 Entry { filename = "backorifice-brute.nse", categories = { "brute", "intrusive", } }