diff --git a/Chapter_4.ipynb b/Chapter_4.ipynb
index 2767a00..5432997 100644
--- a/Chapter_4.ipynb
+++ b/Chapter_4.ipynb
@@ -1052,9 +1052,9 @@
     "        super(LastTimeStep, self).__init__()\n",
     "        self.rnn_layers = rnn_layers\n",
     "        if bidirectional:\n",
-    "            self.num_driections = 2\n",
+    "            self.num_directions = 2\n",
     "        else:\n",
-    "            self.num_driections = 1    \n",
+    "            self.num_directions = 1    \n",
     "    \n",
     "    def forward(self, input):\n",
     "        #Result is either a tupe (out, h_t)\n",
@@ -1065,7 +1065,7 @@
     "            last_step = last_step[0]#then h_t is the first item in the tuple\n",
     "        batch_size = last_step.shape[1] #per docs, shape is: '(num_layers * num_directions, batch, hidden_size)'\n",
     "        #reshaping so that everything is separate \n",
-    "        last_step = last_step.view(self.rnn_layers, self.num_driections, batch_size, -1)\n",
+    "        last_step = last_step.view(self.rnn_layers, self.num_directions, batch_size, -1)\n",
     "        #We want the last layer's results\n",
     "        last_step = last_step[self.rnn_layers-1] \n",
     "        #Re order so batch comes first\n",