diff --git a/tests/hostside/helper/java/android/virt/test/VirtualizationTestCaseBase.java b/tests/hostside/helper/java/android/virt/test/VirtualizationTestCaseBase.java
index dc65899..97cd426 100644
--- a/tests/hostside/helper/java/android/virt/test/VirtualizationTestCaseBase.java
+++ b/tests/hostside/helper/java/android/virt/test/VirtualizationTestCaseBase.java
@@ -179,10 +179,10 @@
         assertTrue(apkPath.startsWith("package:"));
         apkPath = apkPath.substring("package:".length());
 
-        // Push the idsig file to the device
-        File idsigOnHost = findTestFile(buildInfo, apkName + ".idsig");
-        final String apkIdsigPath = TEST_ROOT + apkName + ".idsig";
-        androidDevice.pushFile(idsigOnHost, apkIdsigPath);
+        android.run("mkdir", "-p", TEST_ROOT);
+
+        // This file is not what we provide. It will be created by the vm tool.
+        final String outApkIdsigPath = TEST_ROOT + apkName + ".idsig";
 
         final String instanceImg = TEST_ROOT + INSTANCE_IMG;
         final String logPath = TEST_ROOT + "log.txt";
@@ -197,7 +197,7 @@
                         "--log " + logPath,
                         debugFlag,
                         apkPath,
-                        apkIdsigPath,
+                        outApkIdsigPath,
                         instanceImg,
                         configPath);