diff --git a/homeassistant/components/edl21/sensor.py b/homeassistant/components/edl21/sensor.py
index 16502632f4f..65ca1ee9050 100644
--- a/homeassistant/components/edl21/sensor.py
+++ b/homeassistant/components/edl21/sensor.py
@@ -126,7 +126,7 @@ class EDL21:
 
     def __init__(self, hass, config, async_add_entities) -> None:
         """Initialize an EDL21 object."""
-        self._registered_obis = set()
+        self._registered_obis: set[()] = set()
         self._hass = hass
         self._async_add_entities = async_add_entities
         self._name = config[CONF_NAME]
diff --git a/mypy.ini b/mypy.ini
index b0d11d55262..cf85d2e60a9 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -1150,9 +1150,6 @@ ignore_errors = true
 [mypy-homeassistant.components.doorbird.*]
 ignore_errors = true
 
-[mypy-homeassistant.components.edl21.*]
-ignore_errors = true
-
 [mypy-homeassistant.components.elkm1.*]
 ignore_errors = true
 
diff --git a/script/hassfest/mypy_config.py b/script/hassfest/mypy_config.py
index a571047446c..7c97134397b 100644
--- a/script/hassfest/mypy_config.py
+++ b/script/hassfest/mypy_config.py
@@ -38,7 +38,6 @@ IGNORED_MODULES: Final[list[str]] = [
     "homeassistant.components.dhcp.*",
     "homeassistant.components.directv.*",
     "homeassistant.components.doorbird.*",
-    "homeassistant.components.edl21.*",
     "homeassistant.components.elkm1.*",
     "homeassistant.components.emonitor.*",
     "homeassistant.components.enphase_envoy.*",