diff --git a/tools/qt/simulator/drivers/display/monitor.h b/tools/qt/simulator/drivers/display/monitor.h
index 80af87395390ffd79bd64a82e3eeeb3a72628cbd..74cfc6eabc573afb3e836056d74c3f3e5775fe50 100644
--- a/tools/qt/simulator/drivers/display/monitor.h
+++ b/tools/qt/simulator/drivers/display/monitor.h
@@ -26,7 +26,7 @@ class Monitor : public QObject, public SoftEngine {
     Q_OBJECT
 
 public:
-    Monitor() : defaultColor_ (0x44) {}
+    Monitor() : fontPsramBaseAddr_{0}, tftFb_{0}, animaterBuffer_{0}, defaultColor_ (0x44) {}
     virtual ~Monitor() {}
     static Monitor* GetInstance();
     void InitHal();