DynamoDB pageSize option not working

I am using aws cli & querying DynamoDB. I am using “–page-size 10” option in the command, but I am getting more results. Actually I am getting all entries matching the query. There is no difference in the results when I pass page-size option & when I don’t. What I am missing? Why “–page-size” option is not working. Do I need to add any extra option in aws cli?