diff --git a/pkg/doc/presexch/schema.go b/pkg/doc/presexch/schema.go
index 9841ba31a..bb262f619 100644
--- a/pkg/doc/presexch/schema.go
+++ b/pkg/doc/presexch/schema.go
@@ -89,24 +89,7 @@ const DefinitionJSONSchemaV1 = `
             "not":{
                "type":"object",
                "minProperties":1
-            },
-			"contains":{
-				"type":"object",
-				"properties":{
-					"type":{
-					   "type":"string"
-					},
-					"pattern":{
-					   "type":"string"
-					},
-					"const":{
-					   "type":"string"
-					}
-				},
-				"required":[
-					"type"
-				]
-			}
+            }
          },
          "required":[
             "type"
@@ -407,9 +390,6 @@ const DefinitionJSONSchemaV1 = `
                   },
                   "filter":{
                      "$ref":"#/definitions/filter"
-                  },
-                  "optional":{
-                     "type":"boolean"
                   }
                },
                "required":[