diff --git a/spring-boot-project/spring-boot-docs/src/main/kotlin/org/springframework/boot/docs/features/taskexecutionandscheduling/multiple/MyTaskExecutorConfiguration.kt b/spring-boot-project/spring-boot-docs/src/main/kotlin/org/springframework/boot/docs/features/taskexecutionandscheduling/multiple/MyTaskExecutorConfiguration.kt
index 39458319ad..7963b74ddf 100644
--- a/spring-boot-project/spring-boot-docs/src/main/kotlin/org/springframework/boot/docs/features/taskexecutionandscheduling/multiple/MyTaskExecutorConfiguration.kt
+++ b/spring-boot-project/spring-boot-docs/src/main/kotlin/org/springframework/boot/docs/features/taskexecutionandscheduling/multiple/MyTaskExecutorConfiguration.kt
@@ -33,7 +33,7 @@ class MyTaskExecutorConfiguration {
 	@Bean("taskExecutor")
 	fun taskExecutor(): ThreadPoolTaskExecutor {
 		val threadPoolTaskExecutor = ThreadPoolTaskExecutor()
-		threadPoolTaskExecutor.threadNamePrefix = "async-"
+		threadPoolTaskExecutor.setThreadNamePrefix("async-")
 		return threadPoolTaskExecutor
 	}