diff --git a/tsconfig.json b/tsconfig.json
index f2e055a2a9..ddceafa14b 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -8,7 +8,7 @@
 		// the only missing feature is Array.prototype.values
 		"lib": ["es2017"],
 		"target": "es2017",
-
+		"sourceMap": true,
 		"declaration": true,
 		"declarationDir": "types",