diff --git a/lib/app_sources/html.dart b/lib/app_sources/html.dart
index 4cb9b26..ee1593a 100644
--- a/lib/app_sources/html.dart
+++ b/lib/app_sources/html.dart
@@ -22,7 +22,7 @@ String ensureAbsoluteUrl(String ambiguousUrl, Uri referenceAbsoluteUrl) {
   } else if (ambiguousUrl.split('/').where((e) => e.isNotEmpty).length == 1) {
     return '${referenceAbsoluteUrl.origin}/${currPathSegments.join('/')}/$ambiguousUrl';
   } else {
-    return '${referenceAbsoluteUrl.origin}/${currPathSegments.sublist(0, currPathSegments.length - 1).join('/')}/$ambiguousUrl';
+    return '${referenceAbsoluteUrl.origin}/${currPathSegments.sublist(0, currPathSegments.length - (currPathSegments.last.contains('.') ? 1 : 0)).join('/')}/$ambiguousUrl';
   }
 }