diff --git a/src/web/lang.json b/src/web/lang.json
index 87b2459a..4fa5b655 100644
--- a/src/web/lang.json
+++ b/src/web/lang.json
@@ -913,6 +913,11 @@
                     "en": "Password:",
                     "de": "Passwort:"
                 },
+                {
+                    "token": "ZE_GROUP_TAB_POWERMETER_TOPIC",
+                    "en": "Topic:",
+                    "de": "Topic:"
+                },
                 {
                     "token": "ZE_GROUP_TAB_POWERMETER_TARGET",
                     "en": "Target:",