diff --git a/CONTRIBUTING b/CONTRIBUTING.md
similarity index 100%
rename from CONTRIBUTING
rename to CONTRIBUTING.md
diff --git a/README.md b/README.md
index ffce5c4b313..d5087a7f500 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ See [here](cirq/docs/table_of_contents.md) or jump straight to the
 
 ## Contributing
 
-We welcome contributions. Please follow [these](CONTRIBUTING) guidelines.
+We welcome contributions. Please follow these [guidelines](CONTRIBUTING.md).
 
 ## Disclaimer
 
diff --git a/cirq/docs/install.md b/cirq/docs/install.md
index b687166707e..c5f45118366 100644
--- a/cirq/docs/install.md
+++ b/cirq/docs/install.md
@@ -73,7 +73,7 @@ If you want to install Cirq and change Cirq code, then you should add the
 Note that Cirq will be copied into the ```src```directory of your 
 virtual environment, so use this as the base of 
 your git repo. For contributing to Cirq you should use git and
-follow [teste guidelines](../CONTRIBUTING). See these 
+follow these [guidelines](../../CONTRIBUTING.md). See these 
 [instructions](https://git-scm.com/book/en/v2/Getting-Started-Installing-Git)
 for installing git.