diff --git a/esphome/components/m5stack_4relay/__init__.py b/esphome/components/m5stack_4relay/__init__.py
index 4e712570f3..c0b9cc1e47 100644
--- a/esphome/components/m5stack_4relay/__init__.py
+++ b/esphome/components/m5stack_4relay/__init__.py
@@ -11,7 +11,7 @@ MULTI_CONF = True
 CONF_M5STACK_4RELAY_ID = "m5stack_4relay_id"
 
 m5stack_4relay_ns = cg.esphome_ns.namespace("m5stack_4relay")
-M5Stack_4Relay = m5stack_4relay_ns.class_("M5Stack_4Relay", cg.Component, i2c.I2CDevice)
+M5Stack_4Relay = m5stack_4relay_ns.class_("M5Stack4Relay", cg.Component, i2c.I2CDevice)
 
 CONFIG_SCHEMA = (
     cv.Schema(
diff --git a/esphome/components/m5stack_4relay/switch/__init__.py b/esphome/components/m5stack_4relay/switch/__init__.py
index 209ef44bc2..7d841ffa97 100644
--- a/esphome/components/m5stack_4relay/switch/__init__.py
+++ b/esphome/components/m5stack_4relay/switch/__init__.py
@@ -8,7 +8,7 @@ from .. import m5stack_4relay_ns, M5Stack_4Relay, CONF_M5STACK_4RELAY_ID
 DEPENDENCIES = ["m5stack_4relay"]
 
 M5StackSwitch = m5stack_4relay_ns.class_(
-    "M5Stack_4RelaySwitch", cg.Component, i2c.I2CDevice, switch.Switch
+    "M5Stack4RelaySwitch", cg.Component, i2c.I2CDevice, switch.Switch
 )
 
 CONF_INTERLOCK_WAIT_TIME = "interlock_wait_time"