diff --git a/README.rst b/README.rst
index 92eb0f9a..9a57584b 100644
--- a/README.rst
+++ b/README.rst
@@ -59,6 +59,13 @@ further down the stack that can cause many tempest tests to fail.
    find the log message from step 1. To see the possible fields to
    search on click on an entry. Lucene query syntax is available at
    http://lucene.apache.org/core/4_0_0/queryparser/org/apache/lucene/queryparser/classic/package-summary.html#package_description
+
+   Note that wildcard analysis is disabled by default in ElasticSearch so
+   while a query in logstash might work with wildcards, it will not work in
+   elastic-recheck. See the ElasticSearch documentation for more information
+   on wildcard analysis:
+   http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-query-string-query.html#_wildcards
+
 #. Add a comment to the bug with the query you identified and a link to
    the logstash url for that query search.
 #. Add the query to ``elastic-recheck/queries/BUGNUMBER.yaml`` and push