diff --git a/plotter.cpp b/plotter.cpp
index 31e746464..6024fdd53 100644
--- a/plotter.cpp
+++ b/plotter.cpp
@@ -149,7 +149,6 @@ void CPlotter::draw(float swide[], bool bScroll, bool bRed)
       if(smax>y3max)y3max=smax;
     }
     float fac=0.8/qMax(y3max,10.0f);
-    qDebug() << "a" << y3max;
     for(int i=1; i<iz; i++) {
       if(y3[i]>0.0) {
         y2=fac*y3[i];