diff --git a/gtsam/geometry/Point2.h b/gtsam/geometry/Point2.h
index 01a6d6052..6f4f93cf9 100644
--- a/gtsam/geometry/Point2.h
+++ b/gtsam/geometry/Point2.h
@@ -165,12 +165,12 @@ public:
   /// @{
   inline void operator += (const Point2& q) {x_+=q.x_;y_+=q.y_;}
   inline void operator *= (double s) {x_*=s;y_*=s;}
-  Point2 inverse() { return -(*this);}
-  Point2 compose(const Point2& q) { return (*this)+q;}
-  Point2 between(const Point2& q) { return q-(*this);}
-  Vector2 localCoordinates(const Point2& q) { return between(q).vector();}
-  Point2 retract(const Vector2& v) {return compose(Point2(v));}
-  static Vector2 Logmap(const Point2& p) {return p.vector();}
+  Point2 inverse() const { return -(*this);}
+  Point2 compose(const Point2& q) const { return (*this)+q;}
+  Point2 between(const Point2& q) const { return q-(*this);}
+  Vector2 localCoordinates(const Point2& q) const { return between(q).vector();}
+  Point2 retract(const Vector2& v) const { return compose(Point2(v));}
+  static Vector2 Logmap(const Point2& p) { return p.vector();}
   static Point2 Expmap(const Vector2& v) { return Point2(v);}
   /// @}
 
diff --git a/gtsam/geometry/Point3.h b/gtsam/geometry/Point3.h
index 5b133dc60..c9dee9003 100644
--- a/gtsam/geometry/Point3.h
+++ b/gtsam/geometry/Point3.h
@@ -164,12 +164,12 @@ namespace gtsam {
 
     /// @name Deprecated
     /// @{
-    Point3 inverse() { return -(*this);}
-    Point3 compose(const Point3& q) { return (*this)+q;}
-    Point3 between(const Point3& q) { return q-(*this);}
-    Vector3 localCoordinates(const Point3& q) { return between(q).vector();}
-    Point3 retract(const Vector3& v) {return compose(Point3(v));}
-    static Vector3 Logmap(const Point3& p) {return p.vector();}
+    Point3 inverse() const { return -(*this);}
+    Point3 compose(const Point3& q) const { return (*this)+q;}
+    Point3 between(const Point3& q) const { return q-(*this);}
+    Vector3 localCoordinates(const Point3& q) const { return between(q).vector();}
+    Point3 retract(const Vector3& v) const { return compose(Point3(v));}
+    static Vector3 Logmap(const Point3& p) { return p.vector();}
     static Point3 Expmap(const Vector3& v) { return Point3(v);}
     /// @}