diff --git a/idea/tests/org/jetbrains/kotlin/idea/debugger/MockVirtualMachine.java b/idea/tests/org/jetbrains/kotlin/idea/debugger/MockVirtualMachine.java
index 755e96ea34c..bbdfde8d40a 100644
--- a/idea/tests/org/jetbrains/kotlin/idea/debugger/MockVirtualMachine.java
+++ b/idea/tests/org/jetbrains/kotlin/idea/debugger/MockVirtualMachine.java
@@ -159,7 +159,7 @@ public class MockVirtualMachine implements VirtualMachine {
 
     @Override
     public String name() {
-        throw new UnsupportedOperationException();
+        return "JVM mock";
     }
 
     @Override