diff --git a/classpath/java/util/zip/ZipEntry.java b/classpath/java/util/zip/ZipEntry.java
index 9f18369c52..ffa8a1a82e 100644
--- a/classpath/java/util/zip/ZipEntry.java
+++ b/classpath/java/util/zip/ZipEntry.java
@@ -14,4 +14,8 @@ public abstract class ZipEntry {
   public abstract String getName();
   public abstract int getCompressedSize();
   public abstract int getSize();
+
+  public boolean isDirectory() {
+    return getName().endsWith("/");
+  }
 }