diff --git a/src/controllers/controller.line.js b/src/controllers/controller.line.js
index 4a18bdadb3c..5e76866ebb7 100644
--- a/src/controllers/controller.line.js
+++ b/src/controllers/controller.line.js
@@ -304,8 +304,8 @@ module.exports = function(Chart) {
 				halfBorderWidth = (meta.dataset._model.borderWidth || 0) / 2;
 
 				helpers.canvas.clipArea(chart.ctx, {
-					left: area.left,
-					right: area.right,
+					left: area.left - halfBorderWidth,
+					right: area.right + halfBorderWidth,
 					top: area.top - halfBorderWidth,
 					bottom: area.bottom + halfBorderWidth
 				});