diff --git a/code/chapter-4/1-feature-extraction.ipynb b/code/chapter-4/1-feature-extraction.ipynb
index 3c10b88..89c39ef 100644
--- a/code/chapter-4/1-feature-extraction.ipynb
+++ b/code/chapter-4/1-feature-extraction.ipynb
@@ -54,6 +54,7 @@
    "outputs": [],
    "source": [
     "!mkdir -p ../../datasets\n",
+    "!mkdir data\n",
     "!pip install gdown\n",
     "!gdown https://drive.google.com/uc?id=137RyRjvTBkBiIfeYBNZBtViDHQ6_Ewsp --output ../../datasets/caltech101.tar.gz\n",
     "!tar -xvzf ../../datasets/caltech101.tar.gz --directory ../../datasets\n",