diff --git a/4 - More Visualizations.ipynb b/4 - More Visualizations.ipynb
index 9ba7a65..f4b2418 100644
--- a/4 - More Visualizations.ipynb	
+++ b/4 - More Visualizations.ipynb	
@@ -307,7 +307,7 @@
    },
    "outputs": [],
    "source": [
-    "linestyles = ['_', '-', '--', ':']\n",
+    "linestyles = ['-', '--', '-.', ':']\n",
     "\n",
     "print('Line styles: {}'.format(linestyles))"
    ]