diff --git a/notebooks/convergence_testing_2024-03-13/wsd.ipynb b/notebooks/convergence_testing_2024-03-13/wsd.ipynb
index 409529d..9c3dd5c 100644
--- a/notebooks/convergence_testing_2024-03-13/wsd.ipynb
+++ b/notebooks/convergence_testing_2024-03-13/wsd.ipynb
@@ -1815,7 +1815,7 @@
     "\n",
     "Given any 1-hot encoding $X_d\\in\\{0,1\\}^{n_d\\times M}, d=1\\dots,D$, we pose the regression problem as\n",
     "$$\n",
-    "y_{m,d} = g_\\theta\\left(\\beta_{0,d} + \\sum_m\\beta_{m,d} \\ x_{m,d}\\right) + \\epsilon_{m,d}.\n",
+    "y_{d} = g_\\theta\\left(\\beta_{0,d} + \\sum_m\\beta_{m,d} \\ x_{m,d}\\right) + \\epsilon_{d}.\n",
     "$$\n",
     "The shifts of mutation effects between conditions $d$ and $d'$ are\n",
     "$$\n",