diff --git a/src/warden-server/etc/warden-server.conf.tmpl.update b/src/warden-server/etc/warden-server.conf.tmpl.update
index e5f3042f24f95cfab1105901316cccabbf7141d0..12a8586a274854a89db6c5bbcb6bcda131243c3e 100644
--- a/src/warden-server/etc/warden-server.conf.tmpl.update
+++ b/src/warden-server/etc/warden-server.conf.tmpl.update
@@ -52,6 +52,5 @@ $MAX_EVENTS_LIMIT = "_MAX_EVENTS_LIMIT_";
 # VALID_STRINGS - validation hash containing allowed event attributes
 #-------------------------------------------------------------------------------
 %VALID_STRINGS = (
-  "type" => ["portscan", "bruteforce", "probe", "spam", "phishing", "botnet_c_c", "dos", "malware", "copyright", "webattack", "vulnerability", "test", "other", "_any_"],
-  "source_type" => ["IP", "URL", "Reply-To:"]
+"_VALID_STRINGS"
 );