diff --git a/PreferencesKeys.h b/PreferencesKeys.h
index 890bca2..92c177c 100644
--- a/PreferencesKeys.h
+++ b/PreferencesKeys.h
@@ -28,7 +28,7 @@
 #define preference_keypad_control_enabled "kpEnabled"
 #define preference_register_as_app "regAsApp" // true = register as hub; false = register as app
 #define preference_command_nr_of_retries "nrRetry"
-#define preference_command_retry_delay "nrRetry"
+#define preference_command_retry_delay "rtryDelay"
 #define preference_cred_user "crdusr"
 #define preference_cred_password "crdpass"
 #define preference_publish_authdata "pubauth"
diff --git a/WebCfgServer.cpp b/WebCfgServer.cpp
index 679fbc3..054e2d9 100644
--- a/WebCfgServer.cpp
+++ b/WebCfgServer.cpp
@@ -648,7 +648,7 @@ void WebCfgServer::buildNukiConfigHtml(String &response)
         printCheckBox(response, "KPENA", "Enabled keypad control via MQTT", _preferences->getBool(preference_keypad_control_enabled));
     }
     printInputField(response, "NRTRY", "Number of retries if command failed", _preferences->getInt(preference_command_nr_of_retries), 10);
-    printInputField(response, "TRYDLY", "Delay between retries", _preferences->getInt(preference_command_retry_delay), 10);
+    printInputField(response, "TRYDLY", "Delay between retries (milliseconds)", _preferences->getInt(preference_command_retry_delay), 10);
     printCheckBox(response, "PUBAUTH", "Publish auth data (May reduce battery life)", _preferences->getBool(preference_publish_authdata));
     printCheckBox(response, "GPLCK", "Enable control via GPIO", _preferences->getBool(preference_gpio_locking_enabled));
     printInputField(response, "PRDTMO", "Presence detection timeout (seconds; -1 to disable)", _preferences->getInt(preference_presence_detection_timeout), 10);