fast_excel.gemspec in fast_excel-0.1.4 vs fast_excel.gemspec in fast_excel-0.1.5

@@ -1,18 +1,20 @@
 Gem::Specification.new do |s|
   s.name        = "fast_excel"
-  s.version     = "0.1.4"
+  s.version     = "0.1.5"
   s.author      = ["Pavel Evstigneev"]
   s.email       = ["[e-mail]"]
   s.homepage    = "https://github.com/paxa/fast_excel"
   s.summary     = %q{Ultra Fast Excel Writter}
   s.description = "Wrapper for libxlsxwriter using ffi"
   s.license     = 'MIT'
+  s.has_rdoc    = false
   s.required_ruby_version = '~> 2.0'
 
   s.files       = `git ls-files`.split("\n")
   s.test_files  = []
 
   s.require_paths = ["lib"]
+  s.extensions = ["extconf.rb"]
 
   s.add_runtime_dependency "ffi", ["> 1.9", "< 2"]
 end