diff --git a/spring-boot-project/spring-boot-docs/src/docs/antora/modules/reference/pages/features/external-config.adoc b/spring-boot-project/spring-boot-docs/src/docs/antora/modules/reference/pages/features/external-config.adoc
index 5fe71a97d0..2e4ca3b32d 100644
--- a/spring-boot-project/spring-boot-docs/src/docs/antora/modules/reference/pages/features/external-config.adoc
+++ b/spring-boot-project/spring-boot-docs/src/docs/antora/modules/reference/pages/features/external-config.adoc
@@ -964,7 +964,7 @@ Support for binding from environment variables is applied to the `systemEnvironm
 
 
 [[features.external-config.typesafe-configuration-properties.relaxed-binding.maps-from-environment-variables]]
-==== Binding Maps from environment variables
+==== Binding Maps From Environment Variables
 
 When Spring Boot binds an environment variable to a property class, it lowercases the environment variable name before binding.
 Most of the time this detail isn't important, except when binding to `Map` properties.