diff --git a/test/pdfs/issue1597.pdf.link b/test/pdfs/issue1597.pdf.link
new file mode 100644
index 000000000..94d54084e
--- /dev/null
+++ b/test/pdfs/issue1597.pdf.link
@@ -0,0 +1 @@
+http://content1d.omroep.nl/227cbd4ae54f95dd466a7a8475fec2ea/4f95b377/nos/docs/230412_brief_koningin.pdf
diff --git a/test/test_manifest.json b/test/test_manifest.json
index b6879e1ec..38e7d7ed2 100644
--- a/test/test_manifest.json
+++ b/test/test_manifest.json
@@ -560,6 +560,13 @@
       "link": true,
       "type": "eq"
     },
+    {  "id": "issue1597",
+      "file": "pdfs/issue1597.pdf",
+      "md5": "a5ebef467fd6e2fc0aeb56c9eb725ae3",
+      "rounds": 1,
+      "link": true,
+      "type": "eq"
+    },
     {  "id": "issue1317",
       "file": "pdfs/issue1317.pdf",
       "md5": "6fb46275b30c48c8985617d4f86199e3",