diff --git a/docs/notebooks/100_pbmc.ipynb b/docs/notebooks/100_pbmc.ipynb
index 4260e0cd..95b9facf 100644
--- a/docs/notebooks/100_pbmc.ipynb
+++ b/docs/notebooks/100_pbmc.ipynb
@@ -759,7 +759,7 @@
     "    time_encoder_dropout=0.0,\n",
     "    hidden_dims=[2048, 2048, 2048],\n",
     "    hidden_dropout=0.0,\n",
-    "    conditioning=\"concatenation\"\n",
+    "    conditioning=\"concatenation\",\n",
     "    decoder_dims=[4096, 4096, 4096],\n",
     "    vf_act_fn=nn.silu,\n",
     "    vf_kwargs=None,\n",