diff --git a/lib/cldr/export/data/calendars/gregorian.rb b/lib/cldr/export/data/calendars/gregorian.rb
index 502be55f..59c2f0cb 100644
--- a/lib/cldr/export/data/calendars/gregorian.rb
+++ b/lib/cldr/export/data/calendars/gregorian.rb
@@ -92,7 +92,10 @@ def eras
                 path = "#{base_path}/#{name}/*"
                 key  = name.gsub('era', '').gsub(/s$/, '').downcase.to_sym
                 result[key] = select(path).inject({}) do |ret, node|
-                  type = node.attribute('type').value.to_i rescue 0
+                  # TODO: Actually resolve alias nodes
+                  # https://github.com/ruby-i18n/ruby-cldr/issues/78
+                  next {} if node.name == "alias"
+                  type = node.attribute('type').value.to_i
                   ret[type] = node.content
                   ret
                 end