diff --git a/platform/script-debugger/debugger-ui/src/DebugProcessImpl.kt b/platform/script-debugger/debugger-ui/src/DebugProcessImpl.kt
index 5ef66a6360e8..d3df02dc8f18 100644
--- a/platform/script-debugger/debugger-ui/src/DebugProcessImpl.kt
+++ b/platform/script-debugger/debugger-ui/src/DebugProcessImpl.kt
@@ -41,6 +41,7 @@ interface MultiVmDebugProcess {
   val mainVm: Vm?
   val activeOrMainVm: Vm?
   val childConnections: List<VmConnection<*>>
+    get() = emptyList()
 }
 
 abstract class DebugProcessImpl<C : VmConnection<*>>(session: XDebugSession,