special character in symbol label ∈

[Jørgen]

Dear community,

In Arcmap I am trying to write the special character "include in range" (looks like this  ∈ )  in the label text but only a white square appears..  (I have tried to use the html code ∈  but I might use a wrong syntax. 

how do I do? 

[DanielNilssonSWE]

changed the font to Lucida Sans Unicode used for the labeling solved the "square" issue as well.