diff --git a/lib/http_accept_language/parser.rb b/lib/http_accept_language/parser.rb
index a47d1c8..9252328 100644
--- a/lib/http_accept_language/parser.rb
+++ b/lib/http_accept_language/parser.rb
@@ -56,9 +56,8 @@ def preferred_language_from(array)
     #
     def compatible_language_from(available_languages)
       user_preferred_languages.map do |preferred|
-        available_languages.find do |available|
-          available.to_s =~ /^#{Regexp.escape(preferred.to_s)}(-|$)/
-        end
+        available_languages.find { |available| available.to_s == preferred.to_s } ||
+        available_languages.find { |available| available.to_s =~ /^#{Regexp.escape(preferred.to_s)}-/ } 
       end.compact.first
     end