diff --git a/nodes/modifier_change/recalc_normals.py b/nodes/modifier_change/recalc_normals.py
index 248d20056dfc388aaf659fe7c154c92d4ae49cb6..c5faddc4d7d8c9a6331fd98db0618e6eaa373137 100644
--- a/nodes/modifier_change/recalc_normals.py
+++ b/nodes/modifier_change/recalc_normals.py
@@ -69,6 +69,7 @@ class SvRecalcNormalsNode(bpy.types.Node, SverchCustomTreeNode):
         for vertices, edges, faces, mask in zip(*meshes):
 
             bm = bmesh_from_pydata(vertices, edges, faces)
+            bm.normal_update()
             fullList(mask, len(faces))
 
             b_faces = []