diff --git a/src/calibre/utils/podofo/global.h b/src/calibre/utils/podofo/global.h
index 1fcb0f05e2..74bc124c54 100644
--- a/src/calibre/utils/podofo/global.h
+++ b/src/calibre/utils/podofo/global.h
@@ -130,7 +130,7 @@ object_as_reference(const PdfObject *o) {
 }
 
 // NoMetadataUpdate needed to avoid PoDoFo clobbering the /Info and XMP metadata with its own nonsense
-// NoCollectGarbage needed to avoid slowdowns on writing, see https://github.com/podofo/podofo/issues/99#issuecomment-1787239479
+// NoCollectGarbage needed to avoid slowdowns on writing, see https://github.com/podofo/podofo/issues/108
 static const PdfSaveOptions save_options = PdfSaveOptions::NoMetadataUpdate | PdfSaveOptions::NoCollectGarbage;
 
 class PdfReferenceHasher {