diff --git a/13_convolutional_neural_networks.ipynb b/13_convolutional_neural_networks.ipynb
index 758c18c..b719466 100644
--- a/13_convolutional_neural_networks.ipynb
+++ b/13_convolutional_neural_networks.ipynb
@@ -198,7 +198,7 @@
     "\n",
     "X = tf.placeholder(tf.float32, shape=(None, height, width, 1))\n",
     "feature_maps = tf.constant(fmap)\n",
-    "convolution = tf.nn.conv2d(X, feature_maps, strides=[1,1,1,1], padding=\"SAME\", use_cudnn_on_gpu=False)"
+    "convolution = tf.nn.conv2d(X, feature_maps, strides=[1,1,1,1], padding=\"SAME\")"
    ]
   },
   {