diff --git a/spring-boot-project/spring-boot-autoconfigure/src/main/resources/META-INF/additional-spring-configuration-metadata.json b/spring-boot-project/spring-boot-autoconfigure/src/main/resources/META-INF/additional-spring-configuration-metadata.json
index f46eca5fec79..626166476863 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/main/resources/META-INF/additional-spring-configuration-metadata.json
+++ b/spring-boot-project/spring-boot-autoconfigure/src/main/resources/META-INF/additional-spring-configuration-metadata.json
@@ -1785,7 +1785,7 @@
     },
     {
       "name": "spring.netty.leak-detection",
-      "defaultValue": "disabled"
+      "defaultValue": "simple"
     }
   ],
   "hints": [