diff --git a/native-build/InstallNativeImage.java b/native-build/InstallNativeImage.java
index f61e2846..e29a4249 100644
--- a/native-build/InstallNativeImage.java
+++ b/native-build/InstallNativeImage.java
@@ -1,6 +1,7 @@
 import java.io.*;
 import java.net.*;
 import java.util.zip.*;
+import java.util.*;
 
 public class InstallNativeImage {