diff --git a/homeassistant/components/shelly/__init__.py b/homeassistant/components/shelly/__init__.py
index 8e6417c5d7c..08c161c357e 100644
--- a/homeassistant/components/shelly/__init__.py
+++ b/homeassistant/components/shelly/__init__.py
@@ -111,6 +111,8 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
 
 async def async_setup_entry(hass: HomeAssistant, entry: ShellyConfigEntry) -> bool:
     """Set up Shelly from a config entry."""
+    entry.runtime_data = ShellyEntryData([])
+
     # The custom component for Shelly devices uses shelly domain as well as core
     # integration. If the user removes the custom component but doesn't remove the
     # config entry, core integration will try to configure that config entry with an
@@ -162,7 +164,8 @@ async def _async_setup_block_entry(
         device_entry = None
 
     sleep_period = entry.data.get(CONF_SLEEP_PERIOD)
-    runtime_data = entry.runtime_data = ShellyEntryData(BLOCK_SLEEPING_PLATFORMS)
+    runtime_data = entry.runtime_data
+    runtime_data.platforms = BLOCK_SLEEPING_PLATFORMS
 
     # Some old firmware have a wrong sleep period hardcoded value.
     # Following code block will force the right value for affected devices
@@ -273,7 +276,8 @@ async def _async_setup_rpc_entry(hass: HomeAssistant, entry: ShellyConfigEntry)
         device_entry = None
 
     sleep_period = entry.data.get(CONF_SLEEP_PERIOD)
-    runtime_data = entry.runtime_data = ShellyEntryData(RPC_SLEEPING_PLATFORMS)
+    runtime_data = entry.runtime_data
+    runtime_data.platforms = RPC_SLEEPING_PLATFORMS
 
     if sleep_period == 0:
         # Not a sleeping device, finish setup