diff --git a/esphome/components/dsmr/sensor.py b/esphome/components/dsmr/sensor.py
index 05c568e21a..84b263c2d5 100644
--- a/esphome/components/dsmr/sensor.py
+++ b/esphome/components/dsmr/sensor.py
@@ -5,6 +5,7 @@ from esphome.const import (
     DEVICE_CLASS_CURRENT,
     DEVICE_CLASS_EMPTY,
     DEVICE_CLASS_ENERGY,
+    DEVICE_CLASS_GAS,
     DEVICE_CLASS_POWER,
     DEVICE_CLASS_VOLTAGE,
     ICON_EMPTY,
@@ -178,7 +179,7 @@ CONFIG_SCHEMA = cv.Schema(
             "m³",
             ICON_EMPTY,
             3,
-            DEVICE_CLASS_EMPTY,
+            DEVICE_CLASS_GAS,
             STATE_CLASS_MEASUREMENT,
             LAST_RESET_TYPE_NEVER,
         ),
@@ -186,7 +187,7 @@ CONFIG_SCHEMA = cv.Schema(
             "m³",
             ICON_EMPTY,
             3,
-            DEVICE_CLASS_EMPTY,
+            DEVICE_CLASS_GAS,
             STATE_CLASS_MEASUREMENT,
             LAST_RESET_TYPE_NEVER,
         ),
diff --git a/esphome/components/sensor/__init__.py b/esphome/components/sensor/__init__.py
index 19f2a9f0e6..390cfcf551 100644
--- a/esphome/components/sensor/__init__.py
+++ b/esphome/components/sensor/__init__.py
@@ -40,6 +40,7 @@ from esphome.const import (
     DEVICE_CLASS_CARBON_DIOXIDE,
     DEVICE_CLASS_CURRENT,
     DEVICE_CLASS_ENERGY,
+    DEVICE_CLASS_GAS,
     DEVICE_CLASS_HUMIDITY,
     DEVICE_CLASS_ILLUMINANCE,
     DEVICE_CLASS_MONETARY,
@@ -62,6 +63,7 @@ DEVICE_CLASSES = [
     DEVICE_CLASS_CARBON_DIOXIDE,
     DEVICE_CLASS_CURRENT,
     DEVICE_CLASS_ENERGY,
+    DEVICE_CLASS_GAS,
     DEVICE_CLASS_HUMIDITY,
     DEVICE_CLASS_ILLUMINANCE,
     DEVICE_CLASS_MONETARY,