diff --git a/homeassistant/components/zoneminder/__init__.py b/homeassistant/components/zoneminder/__init__.py
index cd62cef74eb..c631406b0e3 100644
--- a/homeassistant/components/zoneminder/__init__.py
+++ b/homeassistant/components/zoneminder/__init__.py
@@ -58,7 +58,7 @@ def setup(hass, config):
     success = True
 
     for conf in config[DOMAIN]:
-        protocol = "https" if config[CONF_SSL] else "http"
+        protocol = "https" if conf[CONF_SSL] else "http"
 
         host_name = conf[CONF_HOST]
         server_origin = f"{protocol}://{host_name}"