diff --git a/Graphs/gSummaryChart.cpp b/Graphs/gSummaryChart.cpp
index e1cc7a33..309054fc 100644
--- a/Graphs/gSummaryChart.cpp
+++ b/Graphs/gSummaryChart.cpp
@@ -18,7 +18,7 @@ SummaryChart::SummaryChart(QString label,GraphType type)
     addGLBuf(quads=new GLShortBuffer(20000,GL_QUADS));
     addGLBuf(lines=new GLShortBuffer(20000,GL_LINES));
     quads->forceAntiAlias(true);
-    lines->setSize(1.5);
+    lines->setSize(2);
     lines->setBlendFunc(GL_DST_ALPHA, GL_ONE_MINUS_DST_ALPHA);
     lines->forceAntiAlias(false);