diff --git a/package.json b/package.json
index 746030c..986f0a2 100644
--- a/package.json
+++ b/package.json
@@ -7,6 +7,7 @@
   "module": "./dist/sigpro.esm.min.js",
   "unpkg": "./dist/sigpro.min.js",
   "jsdelivr": "./dist/sigpro.min.js",
+  "types": "./sigpro.d.ts",
   "exports": {
     ".": {
       "development": "./index.js",