diff --git a/homeassistant/components/group/strings.json b/homeassistant/components/group/strings.json
index 25ae20da995..ba571bb1008 100644
--- a/homeassistant/components/group/strings.json
+++ b/homeassistant/components/group/strings.json
@@ -265,7 +265,7 @@
     },
     "state_classes_not_matching": {
       "title": "State classes is not correct",
-      "description": "Device classes `{state_classes}` on source entities `{source_entities}` needs to be same for sensor group `{entity_id}`.\n\nPlease correct the state classes on the source entities and reload the group sensor to fix this issue."
+      "description": "State classes `{state_classes}` on source entities `{source_entities}` needs to be same for sensor group `{entity_id}`.\n\nPlease correct the state classes on the source entities and reload the group sensor to fix this issue."
     }
   }
 }