diff --git a/test/fixtures/scenarios/logstash_functional/makelogs_index_definition.js b/test/fixtures/scenarios/logstash_functional/makelogs_index_definition.js
index 95b416ea852f0..baf0e5f938b07 100644
--- a/test/fixtures/scenarios/logstash_functional/makelogs_index_definition.js
+++ b/test/fixtures/scenarios/logstash_functional/makelogs_index_definition.js
@@ -33,9 +33,6 @@ module.exports = {
           'match': '*'
         }
       }],
-      '_timestamp': {
-        'enabled': true
-      },
       'properties': {
         '@timestamp': {
           'type': 'date'
diff --git a/test/fixtures/scenarios/makelogs/makelogs_index_definition.js b/test/fixtures/scenarios/makelogs/makelogs_index_definition.js
index 95b416ea852f0..baf0e5f938b07 100644
--- a/test/fixtures/scenarios/makelogs/makelogs_index_definition.js
+++ b/test/fixtures/scenarios/makelogs/makelogs_index_definition.js
@@ -33,9 +33,6 @@ module.exports = {
           'match': '*'
         }
       }],
-      '_timestamp': {
-        'enabled': true
-      },
       'properties': {
         '@timestamp': {
           'type': 'date'