diff --git a/custom_components/nhc2/strings.json b/custom_components/nhc2/strings.json
index 305b378c..0edc38ed 100644
--- a/custom_components/nhc2/strings.json
+++ b/custom_components/nhc2/strings.json
@@ -19,7 +19,8 @@
       }
     },
     "abort": {
-      "single_instance_allowed": "Controller and profile already added."
+      "single_instance_allowed": "Controller and profile already added.",
+      "no_controller_found": "No controller was found."
     },
     "error": {
       "login_check_fail_1": "Connection refused - incorrect protocol version",
diff --git a/custom_components/nhc2/translations/en.json b/custom_components/nhc2/translations/en.json
index 305b378c..0edc38ed 100644
--- a/custom_components/nhc2/translations/en.json
+++ b/custom_components/nhc2/translations/en.json
@@ -19,7 +19,8 @@
       }
     },
     "abort": {
-      "single_instance_allowed": "Controller and profile already added."
+      "single_instance_allowed": "Controller and profile already added.",
+      "no_controller_found": "No controller was found."
     },
     "error": {
       "login_check_fail_1": "Connection refused - incorrect protocol version",
diff --git a/custom_components/nhc2/translations/nl.json b/custom_components/nhc2/translations/nl.json
index 5c7ca40a..01c05488 100644
--- a/custom_components/nhc2/translations/nl.json
+++ b/custom_components/nhc2/translations/nl.json
@@ -19,7 +19,8 @@
       }
     },
     "abort": {
-      "single_instance_allowed": "Controller en profiel reeds toegevoegd."
+      "single_instance_allowed": "Controller en profiel reeds toegevoegd.",
+      "no_controller_found": "Controller niet gevonden."
     },
     "error": {
       "login_check_fail_1": "Verbinding geweigerd - onjuiste protocolversie",