diff --git a/docs/reference/google.auth.transport.grpc.rst b/docs/reference/google.auth.transport.grpc.rst
new file mode 100644
index 0000000..e16d1d8
--- /dev/null
+++ b/docs/reference/google.auth.transport.grpc.rst
@@ -0,0 +1,7 @@
+google.auth.transport.grpc module
+=================================
+
+.. automodule:: google.auth.transport.grpc
+    :members:
+    :inherited-members:
+    :show-inheritance:
diff --git a/docs/reference/google.auth.transport.rst b/docs/reference/google.auth.transport.rst
index 7767daf..1f802c3 100644
--- a/docs/reference/google.auth.transport.rst
+++ b/docs/reference/google.auth.transport.rst
@@ -11,6 +11,7 @@
 
 .. toctree::
 
+   google.auth.transport.grpc
    google.auth.transport.requests
    google.auth.transport.urllib3