diff --git a/grails-app/services/ChartService.groovy b/grails-app/services/ChartService.groovy
index 7c1bf733a..15e1cf883 100644
--- a/grails-app/services/ChartService.groovy
+++ b/grails-app/services/ChartService.groovy
@@ -388,8 +388,11 @@ class ChartService {
 
                 if (plot instanceof CategoryPlot || plot instanceof XYPlot) {
 
+		    float[] dashArray = [2.0F, 2.0F] as float[]
                     plot?.domainGridlinePaint = Color.LIGHT_GRAY
+		    plot?.domainGridlineStroke = new BasicStroke(1F, 0, 2, 0.0F, dashArray, 0.0F);
                     plot?.rangeGridlinePaint = Color.LIGHT_GRAY
+		    plot?.rangeGridlineStroke = new BasicStroke(1F, 0, 2, 0.0F, dashArray, 0.0F);
                     plot?.renderer?.setSeriesPaint(0, subset1SeriesColor)
                     plot?.renderer?.setSeriesPaint(1, subset2SeriesColor)
                     plot?.renderer?.setSeriesOutlinePaint(0, subset1SeriesOutlineColor)