diff --git a/java/analyzer/BAMAnalyzer/QualPerPosnCalculator.java b/java/analyzer/BAMAnalyzer/QualPerPosnCalculator.java
index 9c27c0f..0586d4f 100644
--- a/java/analyzer/BAMAnalyzer/QualPerPosnCalculator.java
+++ b/java/analyzer/BAMAnalyzer/QualPerPosnCalculator.java
@@ -112,7 +112,8 @@ void calculateResult()
        }
        if(p != null)
        {
-         p.setYScale(yRange.minValue, yRange.maxValue + 10);
+//         p.setYScale(yRange.minValue, yRange.maxValue + 10);
+         p.setYScale(0, yRange.maxValue + 10);
          p.plotGraph();
        }
     }