diff --git a/docs/reference/search/suggesters/phrase-suggest.asciidoc b/docs/reference/search/suggesters/phrase-suggest.asciidoc
index 2d0e3e218e6..6b657a9e8ff 100644
--- a/docs/reference/search/suggesters/phrase-suggest.asciidoc
+++ b/docs/reference/search/suggesters/phrase-suggest.asciidoc
@@ -33,12 +33,12 @@ PUT test
           "trigram": {
             "type": "custom",
             "tokenizer": "standard",
-            "filter": ["shingle"]
+            "filter": ["lowercase","shingle"]
           },
           "reverse": {
             "type": "custom",
             "tokenizer": "standard",
-            "filter": ["reverse"]
+            "filter": ["lowercase","reverse"]
           }
         },
         "filter": {