diff --git a/homeassistant/components/plex/manifest.json b/homeassistant/components/plex/manifest.json
index 27461d0d8ad..2f73d8e84aa 100644
--- a/homeassistant/components/plex/manifest.json
+++ b/homeassistant/components/plex/manifest.json
@@ -8,6 +8,7 @@
     "plexauth==0.0.6",
     "plexwebsocket==0.0.13"
   ],
+  "zeroconf": ["_plexmediasvr._tcp.local."],
   "dependencies": ["http"],
   "codeowners": ["@jjlawren"],
   "iot_class": "local_push"
diff --git a/homeassistant/generated/zeroconf.py b/homeassistant/generated/zeroconf.py
index da7c08df675..6a1a7f03be1 100644
--- a/homeassistant/generated/zeroconf.py
+++ b/homeassistant/generated/zeroconf.py
@@ -189,6 +189,11 @@ ZEROCONF = {
             "domain": "nut"
         }
     ],
+    "_plexmediasvr._tcp.local.": [
+        {
+            "domain": "plex"
+        }
+    ],
     "_plugwise._tcp.local.": [
         {
             "domain": "plugwise"