diff --git a/src/plugins/debugger/debuggerengine.cpp b/src/plugins/debugger/debuggerengine.cpp
index e4f75605e7cb80da8186b014984707dbff64979b..ce27d8dfa8a7d66afa1729fae3fc421634a16133 100644
--- a/src/plugins/debugger/debuggerengine.cpp
+++ b/src/plugins/debugger/debuggerengine.cpp
@@ -487,6 +487,8 @@ void DebuggerEngine::startDebugger(DebuggerRunControl *runControl)
 
     QTC_ASSERT(state() == DebuggerNotReady || state() == DebuggerFinished,
          qDebug() << state());
+    d->m_lastGoodState = DebuggerNotReady;
+    d->m_targetState = DebuggerNotReady;
     setState(EngineSetupRequested);
 
     d->m_progress.setProgressValue(200);