diff --git a/module_notebooks/02-building-graphs-with-pggb.ipynb b/module_notebooks/02-building-graphs-with-pggb.ipynb
index 44c8698..da7500f 100644
--- a/module_notebooks/02-building-graphs-with-pggb.ipynb
+++ b/module_notebooks/02-building-graphs-with-pggb.ipynb
@@ -180,6 +180,7 @@
    "source": [
     "for i in *genome.fa.gz; do\n",
       "\tzcat $i | sed \"s\/>\/>${accession}_\/\" | gzip > prepend_${i} \n",
+      "\n",
       "\tmv prepend_${i} $i\n",
     "done\n"
    ]