diff --git a/rest-api-spec/api/delete_by_query.json b/rest-api-spec/api/delete_by_query.json
index e9120d881da..c5e5f93baee 100644
--- a/rest-api-spec/api/delete_by_query.json
+++ b/rest-api-spec/api/delete_by_query.json
@@ -17,11 +17,25 @@
         }
       },
       "params": {
+        "analyzer": {
+          "type" : "string",
+          "description" : "The analyzer to use for the query string"
+        },
         "consistency": {
           "type" : "enum",
           "options" : ["one", "quorum", "all"],
           "description" : "Specific write consistency setting for the operation"
         },
+        "default_operator": {
+          "type" : "enum",
+          "options" : ["AND","OR"],
+          "default" : "OR",
+          "description" : "The default operator for query string query (AND or OR)"
+        },
+        "df": {
+          "type" : "string",
+          "description" : "The field to use as default where no field prefix is given in the query string"
+        },
         "ignore_indices": {
           "type" : "enum",
           "options" : ["none","missing"],
@@ -34,6 +48,10 @@
           "default" : "sync",
           "description" : "Specific replication type"
         },
+        "q": {
+          "type" : "string",
+          "description" : "Query in the Lucene query string syntax"
+        },
         "routing": {
           "type" : "string",
           "description" : "Specific routing value"