diff --git a/Building-your-own.md b/Building-your-own.md
index 095dfac..9e72c40 100644
--- a/Building-your-own.md
+++ b/Building-your-own.md
@@ -19,7 +19,7 @@ A few components has been tested with the board, you can fin them on the followi
 | Quadrature | TE Connectivity | 2301843-1 | |
 | Quadrature | TRU Components | TC-6648084 | |
 
-You also need a 2.5mm 4 pin header and an 3 Position, Off/On, DIP switch.
+You also need a 2.54mm 4 pin header and an 3 positions, Off/On, DIP switch.
 If it helps, here is a [Mouser Link](https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=db5a02bc01)
 
 ### Flashing