diff --git a/pkg/server/config.go b/pkg/server/config.go
index 375c4dc24..c16407606 100644
--- a/pkg/server/config.go
+++ b/pkg/server/config.go
@@ -359,6 +359,9 @@ func NewConfig(codecs serializer.CodecFactory) *Config {
 		// A request body might be encoded in json, and is converted to
 		// proto when persisted in etcd, so we allow 2x as the largest request
 		// body size to be accepted and decoded in a write request.
+		// If this constant is changed, maxRequestSizeBytes in apiextensions-apiserver/third_party/forked/celopenapi/model/schemas.go
+		// should be changed to reflect the new value, if the two haven't
+		// been wired together already somehow.
 		MaxRequestBodyBytes: int64(3 * 1024 * 1024),
 
 		// Default to treating watch as a long-running operation