diff --git a/lib/ec2/right_ec2_security_groups.rb b/lib/ec2/right_ec2_security_groups.rb
index a60bdda..1474b1f 100644
--- a/lib/ec2/right_ec2_security_groups.rb
+++ b/lib/ec2/right_ec2_security_groups.rb
@@ -129,9 +129,9 @@ def describe_security_groups(*list_and_options)
             # Group permissions
             Array(permission[:groups]).each do |group|
               perm = result_perm.dup
-              perm[:group_name] = group[:group_name]
-              perm[:group_id]   = group[:group_id] unless group[:group_id].right_blank?
-              perm[:owner]      = group[:user_id]  unless group[:user_id].right_blank?
+              perm[:group_name] = group[:group_name] unless group[:group_name].right_blank?
+              perm[:group_id]   = group[:group_id]   unless group[:group_id].right_blank?
+              perm[:owner]      = group[:user_id]    unless group[:user_id].right_blank?
               aws_perms << perm
             end
           end