diff --git a/lib/airbrake_api/v3/notice_parser.rb b/lib/airbrake_api/v3/notice_parser.rb
index 1a9018f..db6689e 100644
--- a/lib/airbrake_api/v3/notice_parser.rb
+++ b/lib/airbrake_api/v3/notice_parser.rb
@@ -84,7 +84,7 @@ module AirbrakeApi
       end
 
       def hostname
-        URI.parse(url).hostname
+        context['hostname'] || URI.parse(url).hostname
       rescue URI::InvalidURIError
         ''
       end
--
libgit2 0.21.2