diff --git a/tsconfig-base.json b/tsconfig-base.json
index b72747b..f2c618e 100644
--- a/tsconfig-base.json
+++ b/tsconfig-base.json
@@ -4,6 +4,7 @@
   "compilerOptions": {
     "allowSyntheticDefaultImports": true,
     "declaration": true,
+    "declarationMap": true,
     "esModuleInterop": true,
     "forceConsistentCasingInFileNames": true,
     "isolatedModules": true,