diff --git a/compos/tests/java/android/compos/test/ComposKeyTestCase.java b/compos/tests/java/android/compos/test/ComposKeyTestCase.java
index d59d3d9..49235fe 100644
--- a/compos/tests/java/android/compos/test/ComposKeyTestCase.java
+++ b/compos/tests/java/android/compos/test/ComposKeyTestCase.java
@@ -38,13 +38,25 @@
 @RunWith(DeviceJUnit4ClassRunner.class)
 public final class ComposKeyTestCase extends VirtualizationTestCaseBase {
 
-    /** Wait time for service to be ready on boot */
+    /**
+     * Wait time for service to be ready on boot
+     */
     private static final int READY_LATENCY_MS = 10 * 1000; // 10 seconds
 
-    /** Path to compos_key_cmd tool */
+    /**
+     * Path to compos_key_cmd tool
+     */
     private static final String COMPOS_KEY_CMD_BIN = "/apex/com.android.compos/bin/compos_key_cmd";
 
-    /** Config of the test VM. This is a path inside the APK. */
+    /**
+     * Path to the com.android.compos.payload APK
+     */
+    private static final String COMPOS_PAYLOAD_APK_PATH =
+            "/apex/com.android.compos/app/CompOSPayloadApp/CompOSPayloadApp.apk";
+
+    /**
+     * Config of the test VM. This is a path inside the APK.
+     */
     private static final String VM_TEST_CONFIG_PATH = "assets/vm_test_config.json";
 
     private String mCid;
@@ -134,7 +146,9 @@
                         getDevice(),
                         getBuild(),
                         /* apkName, no need to install */ null,
-                        packageName,
+                        COMPOS_PAYLOAD_APK_PATH,
+                        /* packageName - not needed, we know the path */ null,
+                        /* extraIdSigPaths */ null,
                         VM_TEST_CONFIG_PATH,
                         /* debug */ true,
                         /* use default memoryMib */ 0,
diff --git a/tests/hostside/helper/java/android/virt/test/VirtualizationTestCaseBase.java b/tests/hostside/helper/java/android/virt/test/VirtualizationTestCaseBase.java
index 678fe84..e15f1ae 100644
--- a/tests/hostside/helper/java/android/virt/test/VirtualizationTestCaseBase.java
+++ b/tests/hostside/helper/java/android/virt/test/VirtualizationTestCaseBase.java
@@ -204,6 +204,24 @@
             Optional<Integer> numCpus,
             Optional<String> cpuAffinity)
             throws DeviceNotAvailableException {
+        return startMicrodroid(androidDevice, buildInfo, apkName, null, packageName,
+                extraIdsigPaths, configPath, debug,
+                memoryMib, numCpus, cpuAffinity);
+    }
+
+    public static String startMicrodroid(
+            ITestDevice androidDevice,
+            IBuildInfo buildInfo,
+            String apkName,
+            String apkPath,
+            String packageName,
+            String[] extraIdsigPaths,
+            String configPath,
+            boolean debug,
+            int memoryMib,
+            Optional<Integer> numCpus,
+            Optional<String> cpuAffinity)
+            throws DeviceNotAvailableException {
         CommandRunner android = new CommandRunner(androidDevice);
 
         // Install APK if necessary
@@ -215,9 +233,11 @@
         // Get the path to the installed apk. Note that
         // getDevice().getAppPackageInfo(...).getCodePath() doesn't work due to the incorrect
         // parsing of the "=" character. (b/190975227). So we use the `pm path` command directly.
-        String apkPath = android.run("pm", "path", packageName);
-        assertTrue(apkPath.startsWith("package:"));
-        apkPath = apkPath.substring("package:".length());
+        if (apkPath == null) {
+            apkPath = android.run("pm", "path", packageName);
+            assertTrue(apkPath.startsWith("package:"));
+            apkPath = apkPath.substring("package:".length());
+        }
 
         android.run("mkdir", "-p", TEST_ROOT);