diff --git a/nmap-service-probes b/nmap-service-probes
index 063de8fc3..86a89f765 100644
--- a/nmap-service-probes
+++ b/nmap-service-probes
@@ -3433,7 +3433,7 @@ match http m|^HTTP/1\.1 \d\d\d .*\r\nDate: .*\r\nServer: Oracle9iAS/(\d[-.\w]+)
 match http m|^HTTP/1\.1 \d\d\d .*\r\nDate: .*\r\nServer: Oracle9iAS\r\n| p/Oracle 9iAS httpd/
 match http m|^HTTP/1\.1 \d\d\d .*\r\nDate: .*\r\nAllow: .*\r\nServer: Oracle9iAS-Web-Cache/(\d[-.\w]+)\r\n| p/Oracle 9iAS Web Cache/ v/$1/
 match http m|^HTTP/1\.1 \d\d\d .*\r\nDate: .*\r\nServer: Oracle9iAS/(\d[-.\w]+)  Lotus-Domino Oracle9iAS-Web-Cache/(\d[-.\w]+) |s p/Lotus Domino httpd/ i/Proxied by Oracle9iAS $1 Web Cache $2/
-match http m|^HTTP/1\.1 401 Unauthorized.*\r\nWWW-Authenticate:.*\r\nDate:.*\r\nServer:Criston Precision Agent (\d[-_.\w]+)| p/Criston Precison Agent/ v/$1/
+match http m|^HTTP/1\.1 401 Unauthorized.*\r\nWWW-Authenticate:.*\r\nDate:.*\r\nServer:Criston Precision Agent (\d[-_.\w]+)| p/Criston Precision Agent/ v/$1/
 match http m|^HTTP/1\.0 \d\d\d .*\r\nServer: ALT-N SecurityGateway ([0-9]+.[0-9]+.[0-9]+)| p/ALT-N SecurityGateway httpd/ v/$1/
 
 match nimbud-netmon m|^nimbus/([\d.]+) \d+ \d+\r\nmtype| p/Nimsoft Nimbus network monitor/ v/$1/