diff --git a/docs/lib3x-rands_sphere.md b/docs/lib3x-rands_sphere.md
index a05b97c5..5fcda37e 100644
--- a/docs/lib3x-rands_sphere.md
+++ b/docs/lib3x-rands_sphere.md
@@ -1,4 +1,4 @@
-# rands_disk
+# rands_sphere
 
 Pick random points on the surface of a sphere.