diff --git a/CHANGELOG b/CHANGELOG
index bb09aedc8..b5f8ca42c 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,5 +1,9 @@
 # Nmap Changelog ($Id$); -*-text-*-
 
+o [NSE] Fixed a bug in qscan.nse which gave an error if a confidence
+  level of 0.9995 was used.  Thanks to Marcin Hoffmann for noticing
+  the problem. [Kris]
+
 o [NSE] Added ntp-monlist.nse which discovers NTP server, peer and
   client hosts associated with a scanned target by sending NTPv2
   Private Mode 'monitor' and 'peers' commands to the target. [jah]
diff --git a/scripts/qscan.nse b/scripts/qscan.nse
index 7bbb861a8..6cdc2db1c 100644
--- a/scripts/qscan.nse
+++ b/scripts/qscan.nse
@@ -283,7 +283,7 @@ local getopts = function()
 
 	if conf ~= 0.75 and conf ~= 0.9 and
 	   conf ~= 0.95 and conf ~= 0.975 and
-	   conf ~= 0.99 and conf ~= 0.995 and conf ~= 0.995 then
+	   conf ~= 0.99 and conf ~= 0.995 and conf ~= 0.9995 then
 	   	bool = false
 		err = "Invalid confidence level"
 	end