diff --git a/src/HowBadIsMyBatch.ipynb b/src/HowBadIsMyBatch.ipynb
index 2978b7fa2fa..27904d04346 100644
--- a/src/HowBadIsMyBatch.ipynb
+++ b/src/HowBadIsMyBatch.ipynb
@@ -94,6 +94,7 @@
    "outputs": [],
    "source": [
     "import os\n",
+    "import time\n",
     "\n",
     "class AndroidEmulator:\n",
     "    \n",