diff --git a/spring-boot/src/main/java/org/springframework/boot/context/embedded/undertow/UndertowEmbeddedServletContainerFactory.java b/spring-boot/src/main/java/org/springframework/boot/context/embedded/undertow/UndertowEmbeddedServletContainerFactory.java
index 39af58e6c6..e868383866 100644
--- a/spring-boot/src/main/java/org/springframework/boot/context/embedded/undertow/UndertowEmbeddedServletContainerFactory.java
+++ b/spring-boot/src/main/java/org/springframework/boot/context/embedded/undertow/UndertowEmbeddedServletContainerFactory.java
@@ -412,9 +412,11 @@ public class UndertowEmbeddedServletContainerFactory
 	private AccessLogHandler createAccessLogHandler(HttpHandler handler) {
 		try {
 			createAccessLogDirectoryIfNecessary();
-			String prefix = (this.accessLogPrefix != null ? this.accessLogPrefix : "access_log.");
+			String prefix = (this.accessLogPrefix != null ? this.accessLogPrefix
+					: "access_log.");
 			AccessLogReceiver accessLogReceiver = new DefaultAccessLogReceiver(
-					createWorker(), this.accessLogDirectory, prefix, this.accessLogSuffix);
+					createWorker(), this.accessLogDirectory, prefix,
+					this.accessLogSuffix);
 			String formatString = (this.accessLogPattern != null) ? this.accessLogPattern
 					: "common";
 			return new AccessLogHandler(handler, accessLogReceiver, formatString,