diff --git a/12_nlp_dive.ipynb b/12_nlp_dive.ipynb
index 8ebfd2b..8b68303 100644
--- a/12_nlp_dive.ipynb
+++ b/12_nlp_dive.ipynb
@@ -1614,14 +1614,14 @@
     "\n",
     "    def forward(self, input, state):\n",
     "        h,c = state\n",
-    "        h = torch.stack([h, input], dim=1)\n",
+    "        h = torch.cat([h, input], dim=1)\n",
     "        forget = torch.sigmoid(self.forget_gate(h))\n",
     "        c = c * forget\n",
     "        inp = torch.sigmoid(self.input_gate(h))\n",
     "        cell = torch.tanh(self.cell_gate(h))\n",
     "        c = c + inp * cell\n",
     "        out = torch.sigmoid(self.output_gate(h))\n",
-    "        h = outgate * torch.tanh(c)\n",
+    "        h = out * torch.tanh(c)\n",
     "        return h, (h,c)"
    ]
   },
@@ -2362,4 +2362,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 2
-}
\ No newline at end of file
+}