diff --git a/Maintenance/public_release/announcement/CGAL-4.0-beta1 b/Maintenance/public_release/announcement/CGAL-4.0-beta1
index f254800df6c..6f12038adc7 100644
--- a/Maintenance/public_release/announcement/CGAL-4.0-beta1
+++ b/Maintenance/public_release/announcement/CGAL-4.0-beta1
@@ -37,7 +37,7 @@ o 2D and 3D Alpha Shapes
 
 o AABB Tree, Spatial Searching
  
-  Queries on these data structures are now multi-thead safe.
+  Queries on these data structures are now multi-thread safe.
 
 
 o Surface Reconstruction from Point Sets,