Gemfile in rbs-1.6.2 vs Gemfile in rbs-1.7.0.beta.1

@@ -3,9 +3,10 @@
 # Specify your gem's dependencies in rbs.gemspec
 gemspec
 
 # Development dependencies
 gem "rake"
+gem "rake-compiler"
 gem "test-unit"
 gem "rspec"
 gem "racc"
 gem "rubocop"
 gem "rubocop-rubycw"