diff --git a/Dockerfile b/Dockerfile
index 07cadab..37a5e00 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,4 +8,4 @@ FROM openjdk:11-jdk-oracle
 COPY --from=maven /tmp/code/target/*.jar /webdav.jar
 EXPOSE 8080
 ENV JAVA_OPTS="-Xmx1g"
-ENTRYPOINT ["java","${JAVA_OPTS}","-Djava.security.egd=file:/dev/./urandom","-jar","/webdav.jar"]
+ENTRYPOINT ["sh", "-c", "java $JAVA_OPTS -Djava.security.egd=file:/dev/./urandom -jar /webdav.jar"]