diff --git a/documentation/spring-boot-docs/src/docs/antora/modules/tutorial/pages/first-application/index.adoc b/documentation/spring-boot-docs/src/docs/antora/modules/tutorial/pages/first-application/index.adoc
index 4672aa25dcfc..153ee420f89e 100644
--- a/documentation/spring-boot-docs/src/docs/antora/modules/tutorial/pages/first-application/index.adoc
+++ b/documentation/spring-boot-docs/src/docs/antora/modules/tutorial/pages/first-application/index.adoc
@@ -180,7 +180,10 @@ apply plugin: 'io.spring.dependency-management'
 
 group = 'com.example'
 version = '0.0.1-SNAPSHOT'
-sourceCompatibility = '17'
+
+java {
+	sourceCompatibility = '17'
+}
 
 repositories {
 	mavenCentral()