diff --git a/attachments.scad b/attachments.scad
index 4aab51f7..d395d903 100644
--- a/attachments.scad
+++ b/attachments.scad
@@ -2069,7 +2069,7 @@ module face_mask(faces=[LEFT,RIGHT,FRONT,BACK,BOT,TOP]) {
 //   quadrant (X+Y+) shaped to be diffed away from the edge of parent attachable shape.  If no tag is set
 //   then `edge_mask` sets the tag for children to "remove" so that it will work with the default {{diff()}} tag.
 //   For details on specifying the edges to mask see [Specifying Edges](attachments.scad#subsection-specifying-edges).
-//  For a step-by-step explanation of masking attachments, see the [Attachments Tutorial](Tutorial-Attachment-Edge-Profiling).
+//   For a step-by-step explanation of masking attachments, see the [Attachments Tutorial](Tutorial-Attachment-Edge-Profiling).
 // Figure: A Typical Edge Rounding Mask
 //   module roundit(l,r) difference() {
 //       translate([-1,-1,-l/2])