I want remove the automatic close of the line with the pen in Excalidraw

I usually use excalidraw to take notes for my university and I have the problem that when I try to make some words with the pen, the line closes automatically.

Example

Example with zoom

Below you can see how when I write the “u” the line automatically closes and generates an “o”, it happens to me when I write with the smallest font, I would like to know how I can eliminate that automatic closing that makes the line.