diff --git a/javalib/src/android/system/virtualmachine/VirtualMachineConfig.java b/javalib/src/android/system/virtualmachine/VirtualMachineConfig.java
index 19e663f..3e5e2f7 100644
--- a/javalib/src/android/system/virtualmachine/VirtualMachineConfig.java
+++ b/javalib/src/android/system/virtualmachine/VirtualMachineConfig.java
@@ -530,6 +530,7 @@
                 && this.mEncryptedStorageBytes == other.mEncryptedStorageBytes
                 && this.mVmOutputCaptured == other.mVmOutputCaptured
                 && this.mVmConsoleInputSupported == other.mVmConsoleInputSupported
+                && (this.mVendorDiskImage == null) == (other.mVendorDiskImage == null)
                 && Objects.equals(this.mPayloadConfigPath, other.mPayloadConfigPath)
                 && Objects.equals(this.mPayloadBinaryName, other.mPayloadBinaryName)
                 && Objects.equals(this.mPackageName, other.mPackageName)
diff --git a/tests/testapk/src/java/com/android/microdroid/test/MicrodroidTests.java b/tests/testapk/src/java/com/android/microdroid/test/MicrodroidTests.java
index 0687a7b..d30baf9 100644
--- a/tests/testapk/src/java/com/android/microdroid/test/MicrodroidTests.java
+++ b/tests/testapk/src/java/com/android/microdroid/test/MicrodroidTests.java
@@ -590,6 +590,9 @@
                 .isFalse();
         assertConfigCompatible(baseline, newBaselineBuilder().setPayloadBinaryName("different"))
                 .isFalse();
+        assertConfigCompatible(
+                        baseline, newBaselineBuilder().setVendorDiskImage(new File("/foo/bar")))
+                .isFalse();
         int capabilities = getVirtualMachineManager().getCapabilities();
         if ((capabilities & CAPABILITY_PROTECTED_VM) != 0
                 && (capabilities & CAPABILITY_NON_PROTECTED_VM) != 0) {
@@ -639,6 +642,7 @@
         VirtualMachineConfig.Builder otherOsBuilder =
                 newBaselineBuilder().setOs("microdroid_gki-android14-6.1");
         assertConfigCompatible(microdroidOsConfig, otherOsBuilder).isFalse();
+
     }
 
     private VirtualMachineConfig.Builder newBaselineBuilder() {