2 files changed, 4 insertions, 3 deletions

diff --git a/src/math/point.c b/src/math/point.c
index fb2235e..409bc48 100644
--- a/src/math/point.c
+++ b/src/math/point.c
@@ -14,9 +14,10 @@ point_t *point_new(void) {
 	return point;
 }
 
-point_t *point_copy(point_t *src, point_t *dest) {
+point_t *point_copy(const point_t *src, point_t *dest) {
 	if (src->point) dest->point = gcopy(src->point);
-	if (dest->point) dest->order = gcopy(src->order);
+	if (src->order) dest->order = gcopy(src->order);
+	if (src->cofactor) dest->cofactor = gcopy(src->cofactor);
 	return dest;
 }
 
diff --git a/src/math/point.h b/src/math/point.h
index 4ced232..4ebea31 100644
--- a/src/math/point.h
+++ b/src/math/point.h
@@ -23,7 +23,7 @@ point_t *point_new(void);
  * @param dest
  * @return
  */
-point_t *point_copy(point_t *src, point_t *dest);
+point_t *point_copy(const point_t *src, point_t *dest);
 
 /**
  *