diff --git a/include/geos/algorithm/CGAlgorithmsDD.h b/include/geos/algorithm/CGAlgorithmsDD.h
index d92d3eb666..38de22d465 100644
--- a/include/geos/algorithm/CGAlgorithmsDD.h
+++ b/include/geos/algorithm/CGAlgorithmsDD.h
@@ -145,7 +145,7 @@ class GEOS_DLL CGAlgorithmsDD {
      * The circumcentre does not necessarily lie within the triangle. For example,
      * the circumcentre of an obtuse isosceles triangle lies outside the triangle.
      *
-     * This method uses @ref DD extended-precision arithmetic to provide more accurate
+     * This method uses @ref geos::math::DD extended-precision arithmetic to provide more accurate
      * results than [circumcentre(Coordinate, Coordinate, Coordinate)]
      * (@ref geos::geom::Triangle::circumcentre(const Coordinate& p0, const Coordinate& p1, const Coordinate& p2)).
      *
diff --git a/src/geom/LineString.cpp b/src/geom/LineString.cpp
index 65f86a0d79..ac5d7fe67f 100644
--- a/src/geom/LineString.cpp
+++ b/src/geom/LineString.cpp
@@ -45,7 +45,7 @@ using namespace geos::algorithm;
 namespace geos {
 namespace geom { // geos::geom
 
-LineString::~LineString(){};
+LineString::~LineString(){}
 
 /*protected*/
 LineString::LineString(const LineString& ls)