diff --git a/src/charts/Line.js b/src/charts/Line.js
index 3067dd7b6..ccf597484 100644
--- a/src/charts/Line.js
+++ b/src/charts/Line.js
@@ -953,7 +953,7 @@ class Line {
               areaPath = graphics.move(pX, pY)
 
               // Check for single isolated point
-              if (series[i][j + 1] === null) {
+              if (series[i][j + 1] === null || typeof series[i][j + 1] === 'undefined') {
                 linePaths.push(linePath)
                 areaPaths.push(areaPath)
                 // Stay in pathState = 0;
@@ -1042,7 +1042,7 @@ class Line {
               areaPath = graphics.move(pX, pY)
 
               // Check for single isolated point
-              if (series[i][j + 1] === null) {
+              if (series[i][j + 1] === null || typeof series[i][j + 1] === 'undefined') {
                 linePaths.push(linePath)
                 areaPaths.push(areaPath)
                 // Stay in pathState = 0