diff --git a/16-gated_GCN.ipynb b/16-gated_GCN.ipynb
index df96d70b1..3a8e4342f 100644
--- a/16-gated_GCN.ipynb
+++ b/16-gated_GCN.ipynb
@@ -771,7 +771,7 @@
     }
    ],
    "source": [
-    "batch_scores = model(batch_graphs, batch_x, batch_e, batch_snorm_n, batch_snorm_e)\n",
+    "batch_scores = model(batch_graphs, batch_X, batch_E, batch_snorm_n, batch_snorm_e)\n",
     "print(batch_scores.size())\n",
     "\n",
     "batch_labels = batch_labels\n",