diff --git a/esphome/components/mqtt/__init__.py b/esphome/components/mqtt/__init__.py
index 1fc0c30db..237ed2ce3 100644
--- a/esphome/components/mqtt/__init__.py
+++ b/esphome/components/mqtt/__init__.py
@@ -55,6 +55,7 @@ from esphome.const import (
     PLATFORM_BK72XX,
     PLATFORM_ESP32,
     PLATFORM_ESP8266,
+    PLATFORM_RTL87XX,
     PlatformFramework,
 )
 from esphome.core import CORE, CoroPriority, coroutine_with_priority
@@ -316,7 +317,7 @@ CONFIG_SCHEMA = cv.All(
         }
     ),
     validate_config,
-    cv.only_on([PLATFORM_ESP32, PLATFORM_ESP8266, PLATFORM_BK72XX]),
+    cv.only_on([PLATFORM_ESP32, PLATFORM_ESP8266, PLATFORM_BK72XX, PLATFORM_RTL87XX]),
     _consume_mqtt_sockets,
 )
 
diff --git a/tests/components/mqtt/test.rtl87xx-ard.yaml b/tests/components/mqtt/test.rtl87xx-ard.yaml
new file mode 100644
index 000000000..25cb37a0b
--- /dev/null
+++ b/tests/components/mqtt/test.rtl87xx-ard.yaml
@@ -0,0 +1,2 @@
+packages:
+  common: !include common.yaml
diff --git a/tests/test_build_components/build_components_base.rtl87xx-ard.yaml b/tests/test_build_components/build_components_base.rtl87xx-ard.yaml
new file mode 100644
index 000000000..1720ef700
--- /dev/null
+++ b/tests/test_build_components/build_components_base.rtl87xx-ard.yaml
@@ -0,0 +1,15 @@
+esphome:
+  name: componenttestesprtl87xx
+  friendly_name: $component_name
+
+rtl87xx:
+  board: generic-rtl8710bn-2mb-788k
+
+logger:
+  level: VERY_VERBOSE
+
+packages:
+  component_under_test: !include
+    file: $component_test_file
+    vars:
+      component_test_file: $component_test_file