diff --git a/index.html.markdown b/index.html.markdown
index c7cf44e9..5aee7215 100644
--- a/index.html.markdown
+++ b/index.html.markdown
@@ -42,12 +42,15 @@ The following keys can be used to configure the provider.
   can also be specified with the `GOOGLE_CREDENTIALS` or `GOOGLE_CLOUD_KEYFILE_JSON`
   shell environment variable, containing the contents of the credentials file.
 
-* `project` - (Required) The ID of the project to apply any resources to.  This
-  can also be specified with the `GOOGLE_PROJECT` shell environment variable.
-
 * `region` - (Required) The region to operate under. This can also be specified
   with the `GOOGLE_REGION` shell environment variable.
 
+* `project` - (Optional) The ID of the project to apply resources in. This
+  can also be specified with the `GOOGLE_PROJECT` shell environment variable.
+  If unspecified, users will need to specify the `project` attribute for
+  all resources. If specified, resources which do not depend on a project will
+  ignore this value.
+
 The following keys are supported for backwards compatibility, and may be
 removed in a future version: