diff --git a/Packages/Triangulation_3/changes.txt b/Packages/Triangulation_3/changes.txt
index a30f4201e96..a235cb6a173 100644
--- a/Packages/Triangulation_3/changes.txt
+++ b/Packages/Triangulation_3/changes.txt
@@ -1,3 +1,6 @@
+Version 1.75 (?? July 01)
+- Fix return type of Compare_distance_3 in the HierarchyTraits_3 doc.
+
 Version 1.74 (13 July 01)
 - copy_tds() cleanups.
 - replace delete Cell by delete_cell() in Regular.
diff --git a/Packages/Triangulation_3/doc_tex/Triangulation_3/Triangulation_3_ref/Triangulation_3/TriangulationHierarchyTraits_3.tex b/Packages/Triangulation_3/doc_tex/Triangulation_3/Triangulation_3_ref/Triangulation_3/TriangulationHierarchyTraits_3.tex
index f799eca5ecc..7eb60e18ce8 100644
--- a/Packages/Triangulation_3/doc_tex/Triangulation_3/Triangulation_3_ref/Triangulation_3/TriangulationHierarchyTraits_3.tex
+++ b/Packages/Triangulation_3/doc_tex/Triangulation_3/Triangulation_3_ref/Triangulation_3/TriangulationHierarchyTraits_3.tex
@@ -25,7 +25,8 @@ The triangulation hierarchy uses the traits class
 following additional predicate: 
 
 \ccNestedType{Compare_distance_3}{Predicate object.
-Must provide the operator \ccc{bool operator()(Point p, Point q, Point r)}
+Must provide the operator
+\ccc{Comparison_result operator()(Point p, Point q, Point r)}
 which compares the distance between \ccc{p} and \ccc{q} to the distance
 between \ccc{p} and \ccc{r}.}
 
diff --git a/Packages/Triangulation_3/doc_tex/Triangulation_3/Triangulation_3_ref/Triangulation_3/Triangulation_traits_3.tex b/Packages/Triangulation_3/doc_tex/Triangulation_3/Triangulation_3_ref/Triangulation_3/Triangulation_traits_3.tex
index ecff2dd9713..dab4c8e5360 100644
--- a/Packages/Triangulation_3/doc_tex/Triangulation_3/Triangulation_3_ref/Triangulation_3/Triangulation_traits_3.tex
+++ b/Packages/Triangulation_3/doc_tex/Triangulation_3/Triangulation_3_ref/Triangulation_3/Triangulation_traits_3.tex
@@ -140,7 +140,8 @@ The triangulation hierarchy uses the traits class provided by
 \ccc{Tr::Geom_traits}, which must satisfy the following additional predicate:
 
 \ccNestedType{Compare_distance_3}{Predicate object.
-Must provide the operator \ccc{bool operator()(Point p, Point q, Point r)}
+Must provide the operator
+\ccc{Comparison_result operator()(Point p, Point q, Point r)}
 which compares the distance between \ccc{p} and \ccc{q} to the distance
 between \ccc{p} and \ccc{r}.}
 
diff --git a/Packages/Triangulation_3/doc_tex/basic/Triangulation_3/Triangulation_3_ref/Triangulation_3/TriangulationHierarchyTraits_3.tex b/Packages/Triangulation_3/doc_tex/basic/Triangulation_3/Triangulation_3_ref/Triangulation_3/TriangulationHierarchyTraits_3.tex
index f799eca5ecc..7eb60e18ce8 100644
--- a/Packages/Triangulation_3/doc_tex/basic/Triangulation_3/Triangulation_3_ref/Triangulation_3/TriangulationHierarchyTraits_3.tex
+++ b/Packages/Triangulation_3/doc_tex/basic/Triangulation_3/Triangulation_3_ref/Triangulation_3/TriangulationHierarchyTraits_3.tex
@@ -25,7 +25,8 @@ The triangulation hierarchy uses the traits class
 following additional predicate: 
 
 \ccNestedType{Compare_distance_3}{Predicate object.
-Must provide the operator \ccc{bool operator()(Point p, Point q, Point r)}
+Must provide the operator
+\ccc{Comparison_result operator()(Point p, Point q, Point r)}
 which compares the distance between \ccc{p} and \ccc{q} to the distance
 between \ccc{p} and \ccc{r}.}
 
diff --git a/Packages/Triangulation_3/doc_tex/basic/Triangulation_3/Triangulation_3_ref/Triangulation_3/Triangulation_traits_3.tex b/Packages/Triangulation_3/doc_tex/basic/Triangulation_3/Triangulation_3_ref/Triangulation_3/Triangulation_traits_3.tex
index ecff2dd9713..dab4c8e5360 100644
--- a/Packages/Triangulation_3/doc_tex/basic/Triangulation_3/Triangulation_3_ref/Triangulation_3/Triangulation_traits_3.tex
+++ b/Packages/Triangulation_3/doc_tex/basic/Triangulation_3/Triangulation_3_ref/Triangulation_3/Triangulation_traits_3.tex
@@ -140,7 +140,8 @@ The triangulation hierarchy uses the traits class provided by
 \ccc{Tr::Geom_traits}, which must satisfy the following additional predicate:
 
 \ccNestedType{Compare_distance_3}{Predicate object.
-Must provide the operator \ccc{bool operator()(Point p, Point q, Point r)}
+Must provide the operator
+\ccc{Comparison_result operator()(Point p, Point q, Point r)}
 which compares the distance between \ccc{p} and \ccc{q} to the distance
 between \ccc{p} and \ccc{r}.}