diff --git a/language-snippets.ent b/language-snippets.ent
index 075ed06afd..931f78f54e 100644
--- a/language-snippets.ent
+++ b/language-snippets.ent
@@ -392,7 +392,8 @@ listed here (besides UTC), they only exist for backward compatible reasons.
 
 <!ENTITY date.timezone.errors.description '<para>
 Every call to a date/time function will generate a <constant>E_NOTICE</constant>
-if the time zone is not valid, and/or a <constant>E_STRICT</constant> message
+if the time zone is not valid, and/or a <constant>E_STRICT</constant>
+or <constant>E_WARNING</constant> message
 if using the system settings or the <varname>TZ</varname> environment
 variable. See also <function>date_default_timezone_set</function></para>'>