There is an expression in my code, as in the code below. I am writing this code in Modelsim and this is a Verilog module. The compiler is giving warning, as in title. I have already searched that on internet but couldn't find any reference to that. Please note that when I remove the keyword 'parameter' this warning goes away. I must keep the keyword parameter, as I want to keep this as constant.
parameter reg [4:0]REG_MIN = 5'b00000; // Address of Minimum register <br/>
parameter reg [4:0]REG_MAX = 5'b10110; // Address of Maximum register