diff --git a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/embedded/undertow/UndertowReactiveWebServerFactory.java b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/embedded/undertow/UndertowReactiveWebServerFactory.java
index ed6c9801d099..4ef3fe440b3b 100644
--- a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/embedded/undertow/UndertowReactiveWebServerFactory.java
+++ b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/embedded/undertow/UndertowReactiveWebServerFactory.java
@@ -112,6 +112,11 @@ public void setAccessLogPattern(String accessLogPattern) {
 		this.delegate.setAccessLogPattern(accessLogPattern);
 	}
 
+	/**
+	 * Returns the access log prefix.
+	 * @return the access log prefix
+	 * @since 3.5.0
+	 */
 	public String getAccessLogPrefix() {
 		return this.delegate.getAccessLogPrefix();
 	}