diff --git a/docs/eta-pi-p/manual.ipynb b/docs/eta-pi-p/manual.ipynb
index 890bbf3..ba415c5 100644
--- a/docs/eta-pi-p/manual.ipynb
+++ b/docs/eta-pi-p/manual.ipynb
@@ -890,10 +890,10 @@
     "\n",
     "def update_histogram(**parameters):\n",
     "    global mesh\n",
-    "    l12para = parameters[\"l_{12}\"]\n",
-    "    l23para = parameters[\"l_{23}\"]\n",
-    "    l31para = parameters[\"l_{31}\"]\n",
-    "    intensity_func = intensity_funcs[l12para, l23para, l31para]\n",
+    "    l12 = parameters[\"l_{12}\"]\n",
+    "    l23 = parameters[\"l_{23}\"]\n",
+    "    l31 = parameters[\"l_{31}\"]\n",
+    "    intensity_func = intensity_funcs[l12, l23, l31]\n",
     "    parameters = insert_phi(parameters)\n",
     "    intensity_func.update_parameters(parameters)\n",
     "    intensity_weights = intensity_func(phsp)\n",
@@ -993,10 +993,10 @@
     "\n",
     "\n",
     "def update_plot(**parameters):  # noqa: C901, PLR0912, PLR0914\n",
-    "    l12para = parameters[\"l_{12}\"]\n",
-    "    l23para = parameters[\"l_{23}\"]\n",
-    "    l31para = parameters[\"l_{31}\"]\n",
-    "    intensity_func = intensity_funcs[l12para, l23para, l31para]\n",
+    "    l12 = parameters[\"l_{12}\"]\n",
+    "    l23 = parameters[\"l_{23}\"]\n",
+    "    l31 = parameters[\"l_{31}\"]\n",
+    "    intensity_func = intensity_funcs[l12, l23, l31]\n",
     "    parameters = insert_phi(parameters)\n",
     "    intensity_func.update_parameters(parameters)\n",
     "    intensities = intensity_func(phsp)\n",