diff --git a/lightbutton/lightbutton.cpp b/lightbutton/lightbutton.cpp
index 76e01a1..eded620 100644
--- a/lightbutton/lightbutton.cpp
+++ b/lightbutton/lightbutton.cpp
@@ -28,6 +28,7 @@ LightButton::LightButton(QWidget *parent) : QWidget(parent)
     canMove = false;
     this->installEventFilter(this);
 
+    isAlarm = false;
     timerAlarm = new QTimer(this);
     connect(timerAlarm, SIGNAL(timeout()), this, SLOT(alarm()));
     timerAlarm->setInterval(500);
@@ -435,7 +436,6 @@ void LightButton::stopAlarm()
 
 void LightButton::alarm()
 {
-    static bool isAlarm = false;
     if (isAlarm) {
         textColor = QColor(255, 255, 255);
         bgColor = normalColor;
diff --git a/lightbutton/lightbutton.h b/lightbutton/lightbutton.h
index 7406832..09b1822 100644
--- a/lightbutton/lightbutton.h
+++ b/lightbutton/lightbutton.h
@@ -76,6 +76,7 @@ private:
     bool showOverlay;               //是否显示遮罩层
     QColor overlayColor;            //遮罩层颜色
 
+    bool isAlarm;                   //是否报警
     QTimer *timerAlarm;             //定时器切换颜色
 
 public: