diff --git a/gruntfile.js b/gruntfile.js
index b72c15641..1067ac3db 100644
--- a/gruntfile.js
+++ b/gruntfile.js
@@ -352,6 +352,9 @@ module.exports = function(grunt) {
                 tsconfig: {
                     tsconfig: 'tsconfig.json',
                     passThrough: true,
+                },
+                options: {
+                    additionalFlags: "--sourceMap"
                 }
             },
             buildNodeTests: {
diff --git a/tsconfig.json b/tsconfig.json
index c18e8e2b6..facfb3021 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,7 +1,6 @@
 {
     "version": "1.6.2",
     "compilerOptions": {
-        "sourceMap": false,
         "noEmitOnError": true,
         "noEmitHelpers": true,
         "target": "es5",