diff --git a/test/lib/jdk/test/lib/cli/CommandLineOptionTest.java b/test/lib/jdk/test/lib/cli/CommandLineOptionTest.java
index 7247d879412..b3b1b8a7e2c 100644
--- a/test/lib/jdk/test/lib/cli/CommandLineOptionTest.java
+++ b/test/lib/jdk/test/lib/cli/CommandLineOptionTest.java
@@ -500,6 +500,8 @@ public abstract class CommandLineOptionTest {
             return "-client";
         } else if (Platform.isMinimal()) {
             return "-minimal";
+        } else if (Platform.isZero()) {
+            return "-zero";
         }
         throw new RuntimeException("Unknown VM mode.");
     }