diff --git a/Packages/Convex_hull_3/changes.txt b/Packages/Convex_hull_3/changes.txt
index be6b2e45845..e08214651a2 100644
--- a/Packages/Convex_hull_3/changes.txt
+++ b/Packages/Convex_hull_3/changes.txt
@@ -1,3 +1,7 @@
+
+2.51 (21 October 2003) [af]
+- Fixed typo in section heading
+
 2.50 (15 October 2003) [af]
 - Fixed bug (typo) in simplified example
 
diff --git a/Packages/Convex_hull_3/doc_tex/Convex_hull_3/convex_hull_3.tex b/Packages/Convex_hull_3/doc_tex/Convex_hull_3/convex_hull_3.tex
index 21bc8adadf8..56f71f5b5e1 100644
--- a/Packages/Convex_hull_3/doc_tex/Convex_hull_3/convex_hull_3.tex
+++ b/Packages/Convex_hull_3/doc_tex/Convex_hull_3/convex_hull_3.tex
@@ -40,7 +40,7 @@ resulting hull is a segment or a polyhedron.
 \ccIncludeExampleCode{Convex_hull_3/quickhull_3_ex.C}
 
 
-\section{Incremental  Convex Hull CConstruction}
+\section{Incremental  Convex Hull Construction}
 \ccIndexSubitem{convex hull, 3D}{incremental}
 
 The function \ccc{convex_hull_incremental_3} %
@@ -69,7 +69,7 @@ example.
 
 \ccIncludeExampleCode{Convex_hull_3/incremental_hull_3_demo.C}
 
-\section{Dynamic  Convex Hull CConstruction}
+\section{Dynamic  Convex Hull Construction}
 \ccIndexSubitem{convex hull, 3D}{dynamic}
 
 Fully dynamic maintenance of a convex hull can be achieved by using the
diff --git a/Packages/Convex_hull_3/doc_tex/basic/Convex_hull_3/convex_hull_3.tex b/Packages/Convex_hull_3/doc_tex/basic/Convex_hull_3/convex_hull_3.tex
index 21bc8adadf8..56f71f5b5e1 100644
--- a/Packages/Convex_hull_3/doc_tex/basic/Convex_hull_3/convex_hull_3.tex
+++ b/Packages/Convex_hull_3/doc_tex/basic/Convex_hull_3/convex_hull_3.tex
@@ -40,7 +40,7 @@ resulting hull is a segment or a polyhedron.
 \ccIncludeExampleCode{Convex_hull_3/quickhull_3_ex.C}
 
 
-\section{Incremental  Convex Hull CConstruction}
+\section{Incremental  Convex Hull Construction}
 \ccIndexSubitem{convex hull, 3D}{incremental}
 
 The function \ccc{convex_hull_incremental_3} %
@@ -69,7 +69,7 @@ example.
 
 \ccIncludeExampleCode{Convex_hull_3/incremental_hull_3_demo.C}
 
-\section{Dynamic  Convex Hull CConstruction}
+\section{Dynamic  Convex Hull Construction}
 \ccIndexSubitem{convex hull, 3D}{dynamic}
 
 Fully dynamic maintenance of a convex hull can be achieved by using the