diff --git a/homeassistant/components/homematicip_cloud/strings.json b/homeassistant/components/homematicip_cloud/strings.json
index 1efafdc6e29..794bc2d12e0 100644
--- a/homeassistant/components/homematicip_cloud/strings.json
+++ b/homeassistant/components/homematicip_cloud/strings.json
@@ -16,7 +16,7 @@
     },
     "error": {
       "register_failed": "Failed to register, please try again.",
-      "invalid_sgtin_or_pin": "Invalid SGTIN or PIN, please try again.",
+      "invalid_sgtin_or_pin": "Invalid SGTIN or [%key:common::config_flow::data::pin%], please try again.",
       "press_the_button": "Please press the blue button.",
       "timeout_button": "Blue button press timeout, please try again."
     },