diff --git a/vitamins/leadnut.scad b/vitamins/leadnut.scad
index a898a29..b5ca99b 100644
--- a/vitamins/leadnut.scad
+++ b/vitamins/leadnut.scad
@@ -32,7 +32,7 @@ function leadnut_flange_t(type)      = type[6];     //! Flange thickness
 function leadnut_flange_offset(type) = type[7];     //! Offset of the flange from the top
 function leadnut_holes(type)         = type[8];     //! The number of screw holes
 function leadnut_hole_dia(type)      = type[9];     //! The diameter of the screw holes
-function leadnut_hole_pitch(type)    = type[10];    //! The radia pitch of the screw holes
+function leadnut_hole_pitch(type)    = type[10];    //! The radial pitch of the screw holes
 function leadnut_screw(type)         = type[11];    //! The type of the fixing screws
 function leadnut_pitch(type)         = type[12];    //! Screw pitch
 function leadnut_lead(type)          = type[13];    //! Screw lead