diff --git a/test/src/main/java/org/jvnet/hudson/test/HudsonTestCase.java b/test/src/main/java/org/jvnet/hudson/test/HudsonTestCase.java
index fb3037b7e9..ab0b7d6ddf 100644
--- a/test/src/main/java/org/jvnet/hudson/test/HudsonTestCase.java
+++ b/test/src/main/java/org/jvnet/hudson/test/HudsonTestCase.java
@@ -223,6 +223,13 @@ public abstract class HudsonTestCase extends TestCase {
         return new LocalLauncher(new StreamTaskListener(System.out));
     }
 
+    /**
+     * Allocates a new temporary directory for the duration of this test.
+     */
+    protected File createTmpDir() throws IOException {
+        return TestEnvironment.get().temporaryDirectoryAllocator.allocate();
+    }
+
     /**
      * Returns the last item in the list.
      */
diff --git a/test/src/test/java/hudson/slaves/JNLPLauncherTest.java b/test/src/test/java/hudson/slaves/JNLPLauncherTest.java
index c836676323..0b0a637869 100644
--- a/test/src/test/java/hudson/slaves/JNLPLauncherTest.java
+++ b/test/src/test/java/hudson/slaves/JNLPLauncherTest.java
@@ -43,7 +43,9 @@ public class JNLPLauncherTest extends HudsonTestCase {
         ArgumentListBuilder args = new ArgumentListBuilder();
         args.add("java","-jar");
         args.add(Which.jarFile(netx.jnlp.runtime.JNLPRuntime.class).getAbsolutePath());
-        args.add("-headless","-nosecurity","-jnlp", getJnlpLink(c));
+        args.add("-headless","-basedir");
+        args.add(createTmpDir());
+        args.add("-nosecurity","-jnlp", getJnlpLink(c));
         return args;
     }