diff --git a/docs/lib-vorono3d.md b/docs/lib-vorono3d.md
index 311b7df3..bcbda8d8 100644
--- a/docs/lib-vorono3d.md
+++ b/docs/lib-vorono3d.md
@@ -46,7 +46,7 @@ The preview or rendering of 3D Voronoi is slow. If you want to use this module,
 
 ![voronoi3d](images/lib-voronoi3d-1.JPG)
 
-    If you render, export and save the previous model as `voronoi3d.stl`, the following code will generate a Voronoi sphere.
+If you render, export and save the previous model as `voronoi3d.stl`, the following code will generate a Voronoi sphere.
 
     r = 30;
     thickness = 2;