diff --git a/package.json b/package.json
index 0facbd3..4dfa10a 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
     "url": "https://git.jedipedia.net/swtor/ssn.git"
   },
   "scripts": {
-    "preinstall": "./build.sh"
+    "preinstall": "chmod +x build.sh && ./build.sh"
   },
   "files": [
     "build.sh",