diff --git a/src/controllers/controller.doughnut.js b/src/controllers/controller.doughnut.js
index 7e724d15c..e6992814d 100644
--- a/src/controllers/controller.doughnut.js
+++ b/src/controllers/controller.doughnut.js
@@ -22,7 +22,7 @@
 		// Need to override these to give a nice default
 		tooltips: {
 			callbacks: {
-				title: function() { return '' },
+				title: function() { return '';},
 				label: function(tooltipItem, data) {
 					return data.labels[tooltipItem.index] + ': ' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index];
 				}
diff --git a/src/controllers/controller.polarArea.js b/src/controllers/controller.polarArea.js
index 6bcc6e0df..cca8a65b8 100644
--- a/src/controllers/controller.polarArea.js
+++ b/src/controllers/controller.polarArea.js
@@ -21,7 +21,7 @@
 		// Need to override these to give a nice default
 		tooltips: {
 			callbacks: {
-				title: function() { return '' },
+				title: function() { return ''; },
 				label: function(tooltipItem, data) {
 					return data.labels[tooltipItem.index] + ': ' + tooltipItem.yLabel;
 				}