diff --git a/plugins/inventory/gcp_compute.py b/plugins/inventory/gcp_compute.py
index c395ac6..7396c5f 100644
--- a/plugins/inventory/gcp_compute.py
+++ b/plugins/inventory/gcp_compute.py
@@ -12,7 +12,6 @@ DOCUMENTATION = '''
         - requests >= 2.18.4
         - google-auth >= 1.3.0
     extends_documentation_fragment:
-        - gcp
         - constructed
         - inventory_cache
     description:
@@ -35,6 +34,16 @@ DOCUMENTATION = '''
               hostnames should be assigned. Currently supported hostnames are
               'public_ip', 'private_ip', or 'name'.
           default: ['public_ip', 'private_ip', 'name']
+        auth_kind:
+            description:
+                - The type of credential used.
+        service_account_file:
+            description:
+                - The path of a Service Account JSON file if serviceaccount is selected as type.
+        service_account_email:
+            description:
+                - An optional service account email address if machineaccount is selected
+                  and the user does not wish to use the default email.
 '''
 
 EXAMPLES = '''