diff --git a/bucket/xpdf-tools.json b/bucket/xpdf-tools.json
index c9b872f8b3..3d484b6a5f 100644
--- a/bucket/xpdf-tools.json
+++ b/bucket/xpdf-tools.json
@@ -5,7 +5,8 @@
     "url": "https://xpdfreader-dl.s3.amazonaws.com/xpdf-tools-win-4.01.01.zip",
     "hash": "87f526b2fb4f55c73be5c2443184704dce4efa77ba864b7f8ff2bcd4467f18f9",
     "license": {
-        "identifier": "GPL-2.0-only,GPL-3.0-only"
+        "identifier": "GPL-2.0-only,GPL-3.0-only",
+        "url": "https://www.xpdfreader.com/opensource.html"
     },
     "architecture": {
         "32bit": {