diff --git a/Dockerfile b/Dockerfile
index b6974178d301d73767d916a54b082c47133067aa..52d1f45aa373936d04ad336a7a436337f26f3f79 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM registry.cn-hangzhou.aliyuncs.com/schbrain/jdk11 as builder
 WORKDIR app
-COPY ${JAR_FILE} ${APP_NAME}.jar
-RUN java -Djarmode=layertools -jar ${APP_NAME}.jar extract
+COPY ${JAR_FILE} app.jar
+RUN java -Djarmode=layertools -jar app.jar extract
 
 FROM registry.cn-hangzhou.aliyuncs.com/schbrain/jdk11
 WORKDIR app