diff --git a/app/src/main/java/io/heckel/ntfy/ui/DetailSettingsActivity.kt b/app/src/main/java/io/heckel/ntfy/ui/DetailSettingsActivity.kt
index 8ccfad8..0025251 100644
--- a/app/src/main/java/io/heckel/ntfy/ui/DetailSettingsActivity.kt
+++ b/app/src/main/java/io/heckel/ntfy/ui/DetailSettingsActivity.kt
@@ -282,6 +282,7 @@ class DetailSettingsActivity : AppCompatActivity() {
             val pref: EditTextPreference? = findPreference(prefId)
             pref?.isVisible = true // Hack: Show all settings at once, because subscription is loaded asynchronously
             pref?.text = subscription.displayName
+            pref?.dialogMessage = getString(R.string.detail_settings_appearance_display_name_message, topicShortUrl(subscription.baseUrl, subscription.topic))
             pref?.preferenceDataStore = object : PreferenceDataStore() {
                 override fun putString(key: String?, value: String?) {
                     val displayName: String? = if (value == "") {
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 1691d49..41271e1 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -354,7 +354,7 @@
     <string name="detail_settings_appearance_icon_remove_summary">Icon displayed in notifications for this topic</string>
     <string name="detail_settings_appearance_icon_error_saving">Unable to save icon: %1$s</string>
     <string name="detail_settings_appearance_display_name_title">Display name</string>
-    <string name="detail_settings_appearance_display_name_message">Set a custom display name for this subscription. Leave empty for default</string>
+    <string name="detail_settings_appearance_display_name_message">Set a custom display name for this subscription. Leave blank for default (%1$s).</string>
     <string name="detail_settings_appearance_display_name_default_summary">%1$s (default)</string>
     <string name="detail_settings_global_setting_title">Use global setting</string>
     <string name="detail_settings_global_setting_suffix">using global setting</string>