diff --git a/esphome/components/si4713_i2c/__init__.py b/esphome/components/si4713_i2c/__init__.py
index fd20c751fc..5e58a63b7d 100644
--- a/esphome/components/si4713_i2c/__init__.py
+++ b/esphome/components/si4713_i2c/__init__.py
@@ -475,13 +475,12 @@ async def to_code(config):
 
     async def new_sensor(c, args, setter):
         s = None
-        match args[1]:
-            case "sensor":
-                s = await sensor.new_sensor(c)
-            case "binary_sensor":
-                s = await binary_sensor.new_binary_sensor(c)
-            case "text_sensor":
-                s = await text_sensor.new_text_sensor(c)
+        if args[1] == "sensor":
+            s = await sensor.new_sensor(c)
+        elif args[1] == "binary_sensor":
+            s = await binary_sensor.new_binary_sensor(c)
+        elif args[1] == "text_sensor":
+            s = await text_sensor.new_text_sensor(c)
         cg.add(getattr(var, setter + "_" + args[1])(s))
 
     await for_each_conf(config, SENSORS, new_sensor)
diff --git a/esphome/components/si4713_i2c/si4713sub.h b/esphome/components/si4713_i2c/si4713sub.h
index 71a66dfbb9..5d9844b257 100644
--- a/esphome/components/si4713_i2c/si4713sub.h
+++ b/esphome/components/si4713_i2c/si4713sub.h
@@ -1,5 +1,8 @@
 #pragma once
 
+namespace esphome {
+namespace si4713 {
+
 #ifndef SUB_TEXT
 #define SUB_TEXT(name) \
  protected: \
@@ -50,3 +53,5 @@
   void publish_##name##_text_sensor() { this->publish(this->name##_text_sensor_, this->get_##name##_text_sensor()); } \
   std::string get_##name##_text_sensor();
 
+}  // namespace si4713
+}  // namespace esphome