How to trigger snippet of luasnip with semicolon ; ?

[amalgame21]

I am trying to migrate to blink.cmp from nvim-cmp.
I use luasnip and defined all and only my latex snippets with trig starting by ;.
In nvim-cmp, when I press ; it trigger the menu which shows all of my snippets, along with some other non luasnip items.
However I cannot get the same behaviour working in blink.cmp.
In blink.cmp, after typing ;, no menu shows up. I have to type some more alphabets to trigger the menu with some of my snippets and other items. In this case only a part of my snippets shows up because the alphabets character filtered some of them.
Even set min_keyword_length = 0 or set to 1 doesn't help to trigger the menu only with ;.
How can I include ; as keyword to trigger cmp?

[amalgame21]

I don't know why but I cannot find the answer before posting it but I found it after that
#1919