diff --git a/synthtool/gcp/templates/python_library/docs/index.rst b/synthtool/gcp/templates/python_library/docs/index.rst
index 1feedfe4a..2a9454d41 100644
--- a/synthtool/gcp/templates/python_library/docs/index.rst
+++ b/synthtool/gcp/templates/python_library/docs/index.rst
@@ -11,8 +11,8 @@ API Reference
 .. toctree::
     :maxdepth: 2
 
-    {{ version }}/services
-    {{ version }}/types
+    {{ version }}/services_
+    {{ version }}/types_
 {% endfor %}
 {% if include_uprading_doc %}
 Migration Guide
diff --git a/synthtool/gcp/templates/python_mono_repo_library/docs/index.rst b/synthtool/gcp/templates/python_mono_repo_library/docs/index.rst
index 11f3e1dcc..a6f86ae4c 100644
--- a/synthtool/gcp/templates/python_mono_repo_library/docs/index.rst
+++ b/synthtool/gcp/templates/python_mono_repo_library/docs/index.rst
@@ -11,8 +11,8 @@ API Reference
 .. toctree::
     :maxdepth: 2
 
-    {{ version }}/services
-    {{ version }}/types
+    {{ version }}/services_
+    {{ version }}/types_
 {% endfor %}
 {% if include_uprading_doc %}
 Migration Guide