diff --git a/include/osgUtil/DelaunayTriangulator b/include/osgUtil/DelaunayTriangulator
index 8d0c60978..21d60289c 100644
--- a/include/osgUtil/DelaunayTriangulator
+++ b/include/osgUtil/DelaunayTriangulator
@@ -73,7 +73,7 @@ public:
 
     /** Add vertices and constraint loops from dco
      * Can be used to generate extra vertices where dco crosses 'this' using
-     * osgUtil::tesselator to insert overlap vertices.
+     * osgUtil::tessellator to insert overlap vertices.
      */
     void merge(DelaunayConstraint *dco);