diff --git a/.gitignore b/.gitignore
index 481ae40..c3ef3d6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 .DS_Store
+*.d.ts.map
 *.d.ts
 *.log
 coverage/
diff --git a/package.json b/package.json
index eefb2fa..6ced98d 100644
--- a/package.json
+++ b/package.json
@@ -30,6 +30,7 @@
   "exports": "./index.js",
   "files": [
     "lib/",
+    "index.d.ts.map",
     "index.d.ts",
     "index.js"
   ],
diff --git a/tsconfig.json b/tsconfig.json
index 82cc749..4d9161a 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -3,6 +3,7 @@
     "checkJs": true,
     "customConditions": ["development"],
     "declaration": true,
+    "declarationMap": true,
     "emitDeclarationOnly": true,
     "exactOptionalPropertyTypes": true,
     "lib": ["es2022"],