diff --git a/include/Algo/MC/marchingcube.hpp b/include/Algo/MC/marchingcube.hpp
index 31e8311f2e8b05fda542fc3d163614b882db0119..e318053f4c16477c2bbe40a14dee192f540c7eec 100644
--- a/include/Algo/MC/marchingcube.hpp
+++ b/include/Algo/MC/marchingcube.hpp
@@ -1262,9 +1262,9 @@ void MarchingCube<DataType, Windowing, PFP>::recalPoints(const Geom::Vec3f& orig
 	{
 		typename PFP::VEC3& P = m_positions[i];
 		P -= m_fOrigin;
-		P[0] = (P[0]-0.5f) * m_fScal[0];
-		P[1] = (P[1]-0.5f) * m_fScal[1];
-		P[2] = (P[2]-0.5f) * m_fScal[2];
+		P[0] = (P[0]+0.5f) * m_fScal[0];
+		P[1] = (P[1]+0.5f) * m_fScal[1];
+		P[2] = (P[2]+0.5f) * m_fScal[2];
 		P+=origin;
 	}
 }