diff --git a/docs/source/api/core.rst b/docs/source/api/core.rst
index a32bdc24d11..bbaf591052c 100644
--- a/docs/source/api/core.rst
+++ b/docs/source/api/core.rst
@@ -8,11 +8,31 @@
 .. autoclass:: Config
     :members:
 
+.. autoclass:: Event
+    :members:
+
 .. autoclass:: EventBus
     :members:
 
+.. autoclass:: HomeAssistant
+    :members:
+
+.. autoclass:: State
+    :members:
+
 .. autoclass:: StateMachine
     :members:
 
+.. autoclass:: ServiceCall
+    :members:
+
 .. autoclass:: ServiceRegistry
     :members:
+
+Module contents
+---------------
+
+.. automodule:: homeassistant.core
+    :members:
+    :undoc-members:
+    :show-inheritance: