diff --git a/templates/ts/_package.json b/templates/ts/_package.json
index 89a469b..685c73e 100644
--- a/templates/ts/_package.json
+++ b/templates/ts/_package.json
@@ -9,6 +9,7 @@
 	},
 	"scripts": {
 		"build": "tsc",
+		"dev": "tsc --watch",
 		"test": "prettier --check . && xo && ava"
 	},
 	"files": ["dist"],