1 files changed, 1 insertions, 0 deletions
diff --git a/src/cell.h b/src/cell.h
index 4c74b283..5a534268 100644
--- a/src/cell.h
+++ b/src/cell.h
@@ -39,6 +39,7 @@ typedef struct {
 } UnitCell;
 
 extern UnitCell *cell_new(void);
+extern UnitCell *cell_new_from_cell(UnitCell *orig);
 
 /* Lengths in m, angles in radians */
 extern UnitCell *cell_new_from_parameters(double a, double b, double c,