diff --git a/PNChart/PNLineChart.m b/PNChart/PNLineChart.m
index ec40cc8c..f1731c95 100755
--- a/PNChart/PNLineChart.m
+++ b/PNChart/PNLineChart.m
@@ -202,7 +202,7 @@ - (void)setXLabels:(NSArray *)xLabels withWidth:(CGFloat)width
         for (int index = 0; index < xLabels.count; index++) {
             labelText = xLabels[index];
 
-            NSInteger x = (index *  _xLabelWidth + _chartMarginLeft + _xLabelWidth /2.0 );
+            NSInteger x = (index *  _xLabelWidth + _chartMarginLeft );
             NSInteger y = _chartMarginBottom + _chartCavanHeight;
 
             PNChartLabel *label = [[PNChartLabel alloc] initWithFrame:CGRectMake(x, y, (NSInteger)_xLabelWidth, (NSInteger)_chartMarginBottom)];
@@ -708,7 +708,7 @@ - (void)drawRect:(CGRect)rect
             // draw x axis separator
             CGPoint point;
             for (NSUInteger i = 0; i < [self.xLabels count]; i++) {
-                point = CGPointMake(2 * _chartMarginLeft +  (i * _xLabelWidth), _chartMarginBottom + _chartCavanHeight);
+                point = CGPointMake(_chartMarginLeft +  ( i * _xLabelWidth ) + _xLabelWidth / 2, _chartMarginBottom + _chartCavanHeight);
                 CGContextMoveToPoint(ctx, point.x, point.y - 2);
                 CGContextAddLineToPoint(ctx, point.x, point.y);
                 CGContextStrokePath(ctx);
@@ -716,7 +716,7 @@ - (void)drawRect:(CGRect)rect
 
             // draw y axis separator
             CGFloat yStepHeight = _chartCavanHeight / _yLabelNum;
-            for (NSUInteger i = 0; i < [self.xLabels count]; i++) {
+            for (NSUInteger i = 0; i < self.yLabelNum; i++) {
                 point = CGPointMake(_chartMarginBottom + yAxisOffset, (_chartCavanHeight - i * yStepHeight + _yLabelHeight / 2));
                 CGContextMoveToPoint(ctx, point.x, point.y);
                 CGContextAddLineToPoint(ctx, point.x + 2, point.y);