switch datetime type parameter to date type

Hello expert,

I created crystal report by oracle procedure directly , but a date parameter for this procedure is mapped to datatime type parameter in crystal report, its format is dd/mm/yyyy hh:mm:ss. instead of this datatime format, I need date format as "dd/mm/yyyy", but I found I can't change data type for this procedure parameter in crystal report. I know I can't choose data type for procedure parameter if I use procedure in command. but over here, I have to use this procedure directly instead of using command as data connection for this report. Can I change this procedure parameter for datetime type to date type in the crystal report. Apprecaite very much.