diff --git a/spring-boot-samples/spring-boot-sample-web-ui/src/main/resources/logback.xml b/spring-boot-samples/spring-boot-sample-web-ui/src/main/resources/logback.xml
index 705052307d1..fac5ad3d68d 100644
--- a/spring-boot-samples/spring-boot-sample-web-ui/src/main/resources/logback.xml
+++ b/spring-boot-samples/spring-boot-sample-web-ui/src/main/resources/logback.xml
@@ -2,7 +2,7 @@
 <configuration>
 	<property name="CONSOLE_LOG_PATTERN" value="%d{yyyy-MM-dd HH:mm:ss.SSS} %5p ${PID:- } [%t] --- %-40.40logger{39} : %m%n%wex"/>
 
-	<conversionRule conversionWord="wex" converterClass="org.springframework.boot.strap.logging.logback.WhitespaceThrowableProxyConverter" />
+	<conversionRule conversionWord="wex" converterClass="org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter" />
 
 	<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
 		<encoder>