diff --git a/logPlus/qmycustomplot.cpp b/logPlus/qmycustomplot.cpp
index ab4a3a0..b87adb3 100644
--- a/logPlus/qmycustomplot.cpp
+++ b/logPlus/qmycustomplot.cpp
@@ -370,12 +370,12 @@ void QMyCustomPlot::initWave(QString strSlfName, QString strWaveName)
 
     delete[] value;
 
-	widget->setScaleX(0, 264);
 	widget->m_fmin = vmin;
 	widget->m_fmax = vmax;
     //
     if (!widget->m_bX2Y)
     {
+		widget->setScaleX(0, 264);
         widget->xAxis->setVisible(false);
         widget->xAxis2->setVisible(false);
         widget->yAxis->setVisible(false);