diff --git a/Minkowski_sum_2/doc/Minkowski_sum_2/CGAL/Polygon_nop_decomposition_2.h b/Minkowski_sum_2/doc/Minkowski_sum_2/CGAL/Polygon_nop_decomposition_2.h
index bae6afdfa5c..ece39aec050 100644
--- a/Minkowski_sum_2/doc/Minkowski_sum_2/CGAL/Polygon_nop_decomposition_2.h
+++ b/Minkowski_sum_2/doc/Minkowski_sum_2/CGAL/Polygon_nop_decomposition_2.h
@@ -4,7 +4,7 @@ namespace CGAL {
 \ingroup PkgMinkowskiSum2
 
 The `Polygon_nop_decomposition_2` class implements a convex
-decompistion of a polygon, which merely passes the input polygon to
+decomposition of a polygon, which merely passes the input polygon to
 the list of output convex polygons. It should be used when it is known
 that the input polygon is convex to start with.