diff --git a/src/barchart/horizontal/bar/qhorizontalbarseries.cpp b/src/barchart/horizontal/bar/qhorizontalbarseries.cpp
index 6e8f8fb..42b48a6 100644
--- a/src/barchart/horizontal/bar/qhorizontalbarseries.cpp
+++ b/src/barchart/horizontal/bar/qhorizontalbarseries.cpp
@@ -92,10 +92,9 @@ void QHorizontalBarSeriesPrivate::scaleDomain(Domain& domain)
     qreal maxY(domain.maxY());
 
     qreal y = categoryCount();
-    qreal x = max();
-    minX = qMin(minX, x);
+    minX = qMin(minX, min());
     minY = qMin(minY, - (qreal)0.5);
-    maxX = qMax(maxX, x);
+    maxX = qMax(maxX, max());
     maxY = qMax(maxY, y - (qreal)0.5);
 
     domain.setRange(minX,maxX,minY,maxY);
diff --git a/src/barchart/vertical/bar/qbarseries.cpp b/src/barchart/vertical/bar/qbarseries.cpp
index 42d9014..d33b816 100644
--- a/src/barchart/vertical/bar/qbarseries.cpp
+++ b/src/barchart/vertical/bar/qbarseries.cpp
@@ -94,11 +94,10 @@ void QBarSeriesPrivate::scaleDomain(Domain& domain)
     qreal maxY(domain.maxY());
 
     qreal x = categoryCount();
-    qreal y = max();
     minX = qMin(minX, - (qreal)0.5);
-    minY = qMin(minY, y);
+    minY = qMin(minY, min());
     maxX = qMax(maxX, x - (qreal)0.5);
-    maxY = qMax(maxY, y);
+    maxY = qMax(maxY, max());
 
     domain.setRange(minX,maxX,minY,maxY);
 }