diff --git a/spec/models/post_analyzer_spec.rb b/spec/models/post_analyzer_spec.rb
index 22ed5eba86a..22de2416958 100644
--- a/spec/models/post_analyzer_spec.rb
+++ b/spec/models/post_analyzer_spec.rb
@@ -80,6 +80,11 @@ describe PostAnalyzer do
         post_analyzer = PostAnalyzer.new(raw_three_links, default_topic_id)
         post_analyzer.linked_hosts.should == {"discourse.org" => 1, "www.imdb.com" => 1}
       end
+
+      it 'returns blank for ipv6 output' do
+        post_analyzer = PostAnalyzer.new('PING www.google.com(lb-in-x93.1e100.net) 56 data bytes', default_topic_id)
+        post_analyzer.linked_hosts.should be_blank
+      end
     end
   end