diff --git a/ApplicationCode/UserInterface/RiuSummaryQwtPlot.cpp b/ApplicationCode/UserInterface/RiuSummaryQwtPlot.cpp
index d25812a444..7e13a3facd 100644
--- a/ApplicationCode/UserInterface/RiuSummaryQwtPlot.cpp
+++ b/ApplicationCode/UserInterface/RiuSummaryQwtPlot.cpp
@@ -140,7 +140,9 @@ void RiuSummaryQwtPlot::setZoomWindow(const QwtInterval& leftAxis, const QwtInte
         zoomWindow.setTop(leftAxis.maxValue());
         zoomWindow.setBottom(leftAxis.minValue());
 
+        m_zoomerLeft->blockSignals(true);
         m_zoomerLeft->zoom(zoomWindow);
+        m_zoomerLeft->blockSignals(false);
     }
 
     {
@@ -150,8 +152,10 @@ void RiuSummaryQwtPlot::setZoomWindow(const QwtInterval& leftAxis, const QwtInte
         zoomWindow.setTop(rightAxis.maxValue());
         zoomWindow.setBottom(rightAxis.minValue());
 
+        // No need to block signal since there is no connected slot
         m_zoomerRight->zoom(zoomWindow);
     }
+
 }
 
 //--------------------------------------------------------------------------------------------------