diff --git a/src/gui/widgets/VisualizationWidget.cpp b/src/gui/widgets/VisualizationWidget.cpp
index 7234331df..635f96896 100644
--- a/src/gui/widgets/VisualizationWidget.cpp
+++ b/src/gui/widgets/VisualizationWidget.cpp
@@ -210,7 +210,7 @@ QColor const & VisualizationWidget::determineLineColor(float level) const
 	{
 		return normalColor();
 	}
-	else if( level < 1.0f )
+	else if( level <= 1.0f )
 	{
 		return warningColor();
 	}