diff --git a/javalib/src/android/system/virtualmachine/VirtualMachineConfig.java b/javalib/src/android/system/virtualmachine/VirtualMachineConfig.java
index 9f62579..4002658 100644
--- a/javalib/src/android/system/virtualmachine/VirtualMachineConfig.java
+++ b/javalib/src/android/system/virtualmachine/VirtualMachineConfig.java
@@ -352,7 +352,7 @@
             }
 
             if (!mProtectedVmSet) {
-                throw new IllegalStateException("protectedVm must be set explicitly");
+                throw new IllegalStateException("setProtectedVm(t/f) must be called explicitly");
             }
 
             if (mProtectedVm