Rakefile in instana-1.7.3 vs Rakefile in instana-1.7.4

@@ -29,10 +29,11 @@
                             'test/frameworks/roda_test.rb',
                             'test/frameworks/sinatra_test.rb']
   else
     t.test_files = FileList['test/agent/*_test.rb'] +
                    FileList['test/tracing/*_test.rb'] +
-                   FileList['test/profiling/*_test.rb']
+                   FileList['test/profiling/*_test.rb'] +
+                   FileList['test/benchmarks/bench_*.rb']
   end
 end
 
 task :environment do
   ENV['INSTANA_GEM_DEV'] = 'true'