diff --git a/src/test/ace/MockRenderer.js b/src/test/ace/MockRenderer.js
index f72bae3b..1d7a780b 100644
--- a/src/test/ace/MockRenderer.js
+++ b/src/test/ace/MockRenderer.js
@@ -70,3 +70,6 @@ MockRenderer.prototype.updateLines = function(startRow, endRow) {
 
 MockRenderer.prototype.addMarker = function() {
 };
+
+MockRenderer.prototype.setBreakpoints = function() {
+};