bin/cuc in geordi-0.4.2 vs bin/cuc in geordi-0.4.3

@@ -8,10 +8,12 @@
 format_args = spinner_available ? ['--format', 'CucumberSpinner::CuriousProgressBarFormatter'] : ['--format', 'progress']
 
 # Check if parallel_tests is available
 parallel_tests_available = ['rake', 'parallel:spec'] if File.exists?('Gemfile') && File.open('Gemfile').read.scan(/parallel_tests/).any?
 
-if parallel_tests_available
+use_parallel_tests = parallel_tests_available && (ARGV[0] == nil)
+
+if use_parallel_tests
   puts "Using parallel_tests ...\n\n"
   exec *['b', 'rake', 'parallel:features', ARGV].flatten
 else
   exec *["b", "cucumber", format_args, ARGV].flatten
 end