diff --git a/FloryHugg_DiffUnbleached.ipynb b/FloryHugg_DiffUnbleached.ipynb
index da0718cd718bef5f6b8ea6b4539900bb8e887ad5..04e3b89ec7e788783d046da12ecce802356298df 100644
--- a/FloryHugg_DiffUnbleached.ipynb
+++ b/FloryHugg_DiffUnbleached.ipynb
@@ -51,9 +51,9 @@
     "#              (1-c_tot)*Ga0*2*X[0]*c.dx(0)*tc+\n",
     "#              (1-c_tot)*Ga0/c_tot*c*2*X[0]*c_tot.dx(0)*tc) * df.dx\n",
     "#     # Weak form radial symmetry:\n",
-    "        form = (df.inner((c-c0)/dt, tc*X[0]**2) +\n",
-    "                df.inner((1-c_tot)*Ga0*(df.grad(c)-c/c_tot*df.grad(c_tot)),\n",
-    "                         df.grad(tc)*X[0]**2)) * df.dx\n",
+    "        form = ((c-c0)/dt*tc*X[0]**2 +\n",
+    "                (1-c_tot)*Ga0*(c.dx(0)-c/c_tot*c_tot.dx(0))*\n",
+    "                         tc.dx(0)*X[0]**2) * df.dx\n",
     "    \n",
     "    t = 0\n",
     "    # Solve in time\n",