diff --git a/python_patterns/patterns.ipynb b/python_patterns/patterns.ipynb
index 42fb3aa..d3a8f93 100644
--- a/python_patterns/patterns.ipynb
+++ b/python_patterns/patterns.ipynb
@@ -1,7 +1,7 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:0d6c2b08bbaff6330460e1379004dabcfdd16f3712b1fb820c0315a3f70294f5"
+  "signature": "sha256:51af96cc55143f75f6699c3e53aeead72f1b503d1759501f341f13fbc3436a4c"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -12,7 +12,7 @@
      "cell_type": "markdown",
      "metadata": {},
      "source": [
-      "[Go back](#https://github.com/rasbt/python_reference) to the `python_reference` repository."
+      "[Go back](https://github.com/rasbt/python_reference) to the `python_reference` repository."
      ]
     },
     {