diff --git a/part7a_bitstream.ipynb b/part7a_bitstream.ipynb
index 718b07a1..a4b18c0a 100644
--- a/part7a_bitstream.ipynb
+++ b/part7a_bitstream.ipynb
@@ -26,7 +26,8 @@
     "_add_supported_quantized_objects(co)\n",
     "import os\n",
     "\n",
-    "os.environ['PATH'] = os.environ['XILINX_VIVADO'] + '/bin:' + os.environ['PATH']"
+    "os.environ['PATH'] = os.environ['XILINX_VIVADO'] + '/bin:' + os.environ['PATH']\n",
+    "os.environ['LD_PRELOAD'] = '/lib/x86_64-linux-gnu/libudev.so.1'"
    ]
   },
   {