diff --git a/proto/zitadel/system.proto b/proto/zitadel/system.proto
index 4bfec35e6..e2e95dc9c 100644
--- a/proto/zitadel/system.proto
+++ b/proto/zitadel/system.proto
@@ -217,7 +217,7 @@ service SystemService {
     };
   }
 
-  // Returns the domain of an instance
+  // Adds a domain to an instance
   rpc AddDomain(AddDomainRequest) returns (AddDomainResponse) {
     option (google.api.http) = {
       post: "/instances/{instance_id}/domains";