diff --git a/mainwindow.cpp b/mainwindow.cpp
index 1ca820341..354eae65b 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -1,4 +1,4 @@
-//------------------------------------------------------------- MainWindow
+//-------------------------------------------------------------- MainWindow
 #include "mainwindow.h"
 #include "ui_mainwindow.h"
 #include "devsetup.h"
diff --git a/plotter.cpp b/plotter.cpp
index f42d5faf1..eac3074df 100644
--- a/plotter.cpp
+++ b/plotter.cpp
@@ -145,7 +145,7 @@ void CPlotter::draw(float green[], int ig)                       //draw()
         y1 = 5.0*gain*(y + 20 - m_plotZero);
       } else {
         y=10.0*log10(std::max(mscom_.s1[2*i-1],mscom_.s1[2*i]));
-        y1 = 5.0*gain*(y + 55 - m_plotZero);
+        y1 = 5.0*gain*(y + 51 - m_plotZero);
       }
     } else {
       y1=0;