diff --git a/Polygon_mesh_processing/doc/Polygon_mesh_processing/Polygon_mesh_processing.txt b/Polygon_mesh_processing/doc/Polygon_mesh_processing/Polygon_mesh_processing.txt
index 6544aeec310..0ae1b22cb07 100644
--- a/Polygon_mesh_processing/doc/Polygon_mesh_processing/Polygon_mesh_processing.txt
+++ b/Polygon_mesh_processing/doc/Polygon_mesh_processing/Polygon_mesh_processing.txt
@@ -394,7 +394,7 @@ Property maps are used to record the computed normals.
 \subsection NormalsExample Normals Computation Examples
 
 Property maps are an API introduced in the boost library, that allows to
-associates values to keys. In the following examples we assocatiate
+associate values to keys. In the following examples we associate
 a normal vector to each vertex and to each face.