lib/ec2/ec2.rb in aws-2.5.1 vs lib/ec2/ec2.rb in aws-2.5.2

@@ -557,10 +557,10 @@
         # Amazon 169.254.169.254 does not like escaped symbols!
         # And it doesn't like "\n" inside of encoded string! Grrr....
         # Otherwise, some of UserData symbols will be lost...
         params['UserData'] = Base64.encode64(options[:user_data]).delete("\n").strip unless Aws::Utils.blank?(options[:user_data])
       end
-      unless options[:block_device_mappings].blank?
+      unless Aws::Utils.blank?(options[:block_device_mappings])
         options[:block_device_mappings].size.times do |n|
           if options[:block_device_mappings][n][:virtual_name]
             params["BlockDeviceMapping.#{n+1}.VirtualName"] = options[:block_device_mappings][n][:virtual_name] 
           end
           if options[:block_device_mappings][n][:device_name]