diff --git a/src/MeasureAnalysisParticleCountPlotView/MeasureAnalysisParticleCountPlotView.cpp b/src/MeasureAnalysisParticleCountPlotView/MeasureAnalysisParticleCountPlotView.cpp
index 452d213..0e6cb19 100644
--- a/src/MeasureAnalysisParticleCountPlotView/MeasureAnalysisParticleCountPlotView.cpp
+++ b/src/MeasureAnalysisParticleCountPlotView/MeasureAnalysisParticleCountPlotView.cpp
@@ -192,7 +192,6 @@ void MeasureAnalysisParticleCountPlotView::setupEnergyScaleDlg()
         connect(_data_selector, &CustomQwtPlotXaxisSelector::selectionFinished, _batch_energy_scale_dlg, &BatchEnergyScaleDialog::onSelectedScaleRange);
         connect(_batch_energy_scale_dlg, &BatchEnergyScaleDialog::close, [this](){
             this->_data_selector->setEnabled(false);
-            disconnect(_data_selector, &CustomQwtPlotXaxisSelector::selectionFinished, _batch_energy_scale_dlg, &BatchEnergyScaleDialog::onSelectedScaleRange);
         });
     }
 }