diff --git a/esphome/components/api/api.proto b/esphome/components/api/api.proto
index 6c0ce045d8..dafb42193b 100644
--- a/esphome/components/api/api.proto
+++ b/esphome/components/api/api.proto
@@ -371,6 +371,7 @@ message CoverStateResponse {
 
 // Deprecated in API version 1.1
 enum LegacyCoverCommand {
+  option deprecated = true;
   LEGACY_COVER_COMMAND_OPEN = 0;
   LEGACY_COVER_COMMAND_CLOSE = 1;
   LEGACY_COVER_COMMAND_STOP = 2;