diff --git a/Dockerfile b/Dockerfile
index 2eeabe5..df2abc7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,6 +7,6 @@ FROM ibm-semeru-runtimes:open-21-jre
 WORKDIR /app
 COPY --from=build /app/target/Jetbrains-Help.jar Jetbrains-Help.jar
 ENV TZ=Asia/Shanghai
-RUN ln -sf /usr/share/zoneinfo/{TZ} /etc/localtime && echo "{TZ}" > /etc/timezone
+RUN ln -sf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 EXPOSE 10768
 ENTRYPOINT ["java", "-jar", "Jetbrains-Help.jar"]
\ No newline at end of file
diff --git a/src/main/resources/static/js/index.js b/src/main/resources/static/js/index.js
index 56ded80..a664f2b 100644
--- a/src/main/resources/static/js/index.js
+++ b/src/main/resources/static/js/index.js
@@ -37,8 +37,8 @@ $(document).ready(function() {
         "--add-opens=java.base/jdk.internal.org.objectweb.asm=ALL-UNNAMED\n" +
         "--add-opens=java.base/jdk.internal.org.objectweb.asm.tree=ALL-UNNAMED";
         copyText(text)
-            .then((result) => {
-                alert(result);
+            .then(() => {
+                alert("VM options已复制成功");
             });
     };