diff --git a/tduck-api/src/main/resources/logback-spring.xml b/tduck-api/src/main/resources/logback-spring.xml
index e667880..cc4ee07 100644
--- a/tduck-api/src/main/resources/logback-spring.xml
+++ b/tduck-api/src/main/resources/logback-spring.xml
@@ -2,7 +2,7 @@
 <configuration>
 
     <!-- 日志文件地址，项目根目录 -->
-    <property name="log.path" value="logs/tduck"/>
+    <property name="log.path" value="${log.dir:-logs}/tduck"/>
 
     <springProperty scope="context" name="appname" source="spring.application.name"/>