diff --git a/spring-statemachine-core/src/test/java/org/springframework/statemachine/docs/DocsConfigurationSampleTests5.java b/spring-statemachine-core/src/test/java/org/springframework/statemachine/docs/DocsConfigurationSampleTests5.java
index 5d6179a6..0acca574 100644
--- a/spring-statemachine-core/src/test/java/org/springframework/statemachine/docs/DocsConfigurationSampleTests5.java
+++ b/spring-statemachine-core/src/test/java/org/springframework/statemachine/docs/DocsConfigurationSampleTests5.java
@@ -27,7 +27,6 @@ import org.springframework.statemachine.AbstractStateMachineTests;
 import org.springframework.statemachine.StateMachine;
 import org.springframework.statemachine.StateMachineContext;
 import org.springframework.statemachine.StateMachinePersist;
-import org.springframework.statemachine.StateMachineSystemConstants;
 import org.springframework.statemachine.config.EnableStateMachine;
 import org.springframework.statemachine.config.StateMachineConfigurerAdapter;
 import org.springframework.statemachine.config.builders.StateMachineStateConfigurer;