diff --git a/homeassistant/components/homematic/__init__.py b/homeassistant/components/homematic/__init__.py
index 828e170c67d..d0776baa106 100644
--- a/homeassistant/components/homematic/__init__.py
+++ b/homeassistant/components/homematic/__init__.py
@@ -298,6 +298,7 @@ CONFIG_SCHEMA = vol.Schema(
                 vol.Optional(CONF_HOSTS, default={}): {
                     cv.match_all: {
                         vol.Required(CONF_HOST): cv.string,
+                        vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.port,
                         vol.Optional(
                             CONF_USERNAME, default=DEFAULT_USERNAME
                         ): cv.string,
@@ -392,7 +393,7 @@ def setup(hass, config):
     for sname, sconfig in conf[CONF_HOSTS].items():
         remotes[sname] = {
             "ip": sconfig.get(CONF_HOST),
-            "port": DEFAULT_PORT,
+            "port": sconfig[CONF_PORT],
             "username": sconfig.get(CONF_USERNAME),
             "password": sconfig.get(CONF_PASSWORD),
             "connect": False,