diff --git a/.gitignore b/.gitignore
index 3f5bcd4..8123c9e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 *.d.ts
 *.log
+*.map
 *.tsbuildinfo
 .DS_Store
 coverage/
diff --git a/tsconfig.json b/tsconfig.json
index bed2bb4..c3e0c82 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -2,6 +2,7 @@
   "compilerOptions": {
     "checkJs": true,
     "customConditions": ["development"],
+    "declarationMap": true,
     "declaration": true,
     "emitDeclarationOnly": true,
     "exactOptionalPropertyTypes": true,