diff --git a/ImageD11/nbGui/S3DXRD/pbp_3_refinement.ipynb b/ImageD11/nbGui/S3DXRD/pbp_3_refinement.ipynb
index 146c3076..a2e6a7b1 100755
--- a/ImageD11/nbGui/S3DXRD/pbp_3_refinement.ipynb
+++ b/ImageD11/nbGui/S3DXRD/pbp_3_refinement.ipynb
@@ -393,7 +393,7 @@
     "        pmap = PBPMap(ds.pbpfile)\n",
     "        pmap.choose_best(min_unique)\n",
     "        \n",
-    "        refine = PBPRefine(dset=ds, y0=y0, ybeam=ybeam, hkl_tol_origins=hkl_tol_origins, hkl_tol_refine=hkl_tol_refine, hkl_tol_refine_merged=hkl_tol_refine_merged, ds_tol=ds_tol, ifrac=ifrac, phase_name=phase_str)\n",
+    "        refine = PBPRefine(dset=ds, y0=y0, hkl_tol_origins=hkl_tol_origins, hkl_tol_refine=hkl_tol_refine, hkl_tol_refine_merged=hkl_tol_refine_merged, ds_tol=ds_tol, ifrac=ifrac, phase_name=phase_str)\n",
     "        \n",
     "        refine.setmap(pmap)\n",
     "        refine.setpeaks(cf_2d)\n",