diff --git a/DiffractionGratings/grating3D.geo b/DiffractionGratings/grating3D.geo
index 5047c4e81edec4702f6320eba8504061bff05217..12d1f88fa87a170dca8cf48bd5a168c6bddd3169 100644
--- a/DiffractionGratings/grating3D.geo
+++ b/DiffractionGratings/grating3D.geo
@@ -112,13 +112,6 @@ If (tag_geom==6)
   Volume(10) = {2};
 EndIf
 
-dyc = period_y*Cos(xsi);
-dys = period_y*Sin(xsi);
-hh_L_7 = PML_bot_hh;
-hh_L_0 = PML_top_hh;
-thick_L_7 = PML_bot;
-thick_L_0 = PML_top;
-
 For k In {7:0:-1}
   If (tag_geom!=6)
     p=newp; l=newl; ll=newll; s=news;