diff --git a/spring-boot-autoconfigure/src/main/resources/META-INF/additional-spring-configuration-metadata.json b/spring-boot-autoconfigure/src/main/resources/META-INF/additional-spring-configuration-metadata.json
index 3f6a1743ae3..e4fb88fc498 100644
--- a/spring-boot-autoconfigure/src/main/resources/META-INF/additional-spring-configuration-metadata.json
+++ b/spring-boot-autoconfigure/src/main/resources/META-INF/additional-spring-configuration-metadata.json
@@ -114,8 +114,7 @@
   {
     "name": "spring.aop.proxy-target-class",
     "type": "java.lang.Boolean",
-    "description": "Whether subclass-based (CGLIB) proxies are to be created (true) as opposed to standard Java interface-based proxies (false).",
-    "defaultValue": false
+    "description": "Whether subclass-based (CGLIB) proxies are to be created (true) as opposed to standard Java interface-based proxies (false). Defaults to \"true\" when using Spring Transaction Management, otherwise \"false\"."
   },
   {
     "name": "spring.application.admin.enabled",
diff --git a/spring-boot-docs/src/main/asciidoc/appendix-application-properties.adoc b/spring-boot-docs/src/main/asciidoc/appendix-application-properties.adoc
index 455cc33831a..a0b55f477ad 100644
--- a/spring-boot-docs/src/main/asciidoc/appendix-application-properties.adoc
+++ b/spring-boot-docs/src/main/asciidoc/appendix-application-properties.adoc
@@ -50,7 +50,7 @@ content into your application; rather pick only the properties that you need.
 
 	# AOP
 	spring.aop.auto=true # Add @EnableAspectJAutoProxy.
-	spring.aop.proxy-target-class=false # Whether subclass-based (CGLIB) proxies are to be created (true) as opposed to standard Java interface-based proxies (false).
+	spring.aop.proxy-target-class= # Whether subclass-based (CGLIB) proxies are to be created (true) as opposed to standard Java interface-based proxies (false). Defaults to "true" when using Spring Transaction Management, otherwise "false".
 
 	# IDENTITY ({sc-spring-boot}/context/ContextIdApplicationContextInitializer.{sc-ext}[ContextIdApplicationContextInitializer])
 	spring.application.index= # Application index.