diff --git a/x-pack/plugin/core/src/main/resources/ecs-dynamic-mappings.json b/x-pack/plugin/core/src/main/resources/ecs-dynamic-mappings.json
index cae33730b827b..03f1d0e2557e8 100644
--- a/x-pack/plugin/core/src/main/resources/ecs-dynamic-mappings.json
+++ b/x-pack/plugin/core/src/main/resources/ecs-dynamic-mappings.json
@@ -1,6 +1,7 @@
 {
   "template": {
     "mappings": {
+      "date_detection": false,
       "dynamic_templates": [
         {
           "ecs_timestamp": {