diff --git a/package.json b/package.json
index b187a60..7f0727c 100644
--- a/package.json
+++ b/package.json
@@ -22,6 +22,7 @@
         "node": ">=13"
     },
     "scripts": {
+        "prepublishOnly": "node ./test/test-dist.js",
         "build:watch": "rollup -c rollup.config.js -w",
         "build": "rollup -c rollup.config.js",
         "jest": "jest",
diff --git a/test/test-dist.js b/test/test-dist.js
new file mode 100644
index 0000000..b21b539
--- /dev/null
+++ b/test/test-dist.js
@@ -0,0 +1,7 @@
+(() => {
+    const tsLuxon = require("../dist/ts-luxon.umd");
+    const pkg = require("../package.json");
+    if(pkg.version !== tsLuxon.VERSION) {
+        throw new Error(`Version mismatch! Expected ${pkg.version}, got ${tsLuxon.VERSION}. Rebuild the package to solve!`);
+    }
+})();
\ No newline at end of file