diff --git a/source/blender/blenkernel/BKE_curve.h b/source/blender/blenkernel/BKE_curve.h
index adc94a833c3..3524be99d0a 100644
--- a/source/blender/blenkernel/BKE_curve.h
+++ b/source/blender/blenkernel/BKE_curve.h
@@ -111,7 +111,7 @@ void BKE_curve_material_index_clear(struct Curve *cu);
 bool BKE_curve_material_index_validate(struct Curve *cu);
 void BKE_curve_material_remap(struct Curve *cu, const unsigned int *remap, unsigned int remap_len);
 
-void BKE_curve_smooth_flag_set(struct Curve *cu, bool set);
+void BKE_curve_smooth_flag_set(struct Curve *cu, const bool use_smooth);
 
 ListBase *BKE_curve_nurbs_get(struct Curve *cu);