diff --git a/tsconfig.json b/tsconfig.json
index 66f147f9b2..0afcd00985 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -9,6 +9,7 @@
     "moduleResolution": "node",
     "noImplicitAny": false,
     "removeComments": true,
+    "sourceMap": true,
     "target": "es5",
     "types": ["jasmine"]
   },