diff --git a/ide/NbRuntime.h b/ide/NbRuntime.h
index 2f6a845..9d4c714 100644
--- a/ide/NbRuntime.h
+++ b/ide/NbRuntime.h
@@ -9,7 +9,7 @@
 #include "../Evaluator.h"
 #include "../Parser.h"
 
-class NbRuntime : public QThread
+class NbRuntime : public QObject
 {
     Q_OBJECT