diff --git a/radiant/brush.h b/radiant/brush.h
index 851a9836..319bcf22 100644
--- a/radiant/brush.h
+++ b/radiant/brush.h
@@ -3264,6 +3264,14 @@ public:
     else
     {
       Winding_DrawWireframe(m_winding);
+
+      // also draw a line indicating the direction of the cut
+	  Vector3 lineverts[2];
+	  Winding_Centroid(m_winding, m_plane, lineverts[0]);
+	  lineverts[1] = vector3_added(lineverts[0], vector3_scaled(m_plane.normal(), g_MaxWorldCoord * 4));
+
+	  glVertexPointer(3, GL_FLOAT, sizeof(Vector3), &lineverts[0]);
+	  glDrawArrays(GL_LINES, 0, GLsizei(2));
     }
   }