diff --git a/cmd/kubelet/app/server.go b/cmd/kubelet/app/server.go
index 4de90886575..a167a8eb915 100644
--- a/cmd/kubelet/app/server.go
+++ b/cmd/kubelet/app/server.go
@@ -17,6 +17,9 @@ limitations under the License.
 // Package app makes it easy to create a kubelet server for various contexts.
 package app
 
+// Note: if you change code in this file, you might need to change code in
+// contrib/mesos/pkg/executor/service/.
+
 import (
 	"crypto/tls"
 	"fmt"
diff --git a/pkg/kubelet/kubelet.go b/pkg/kubelet/kubelet.go
index f071f35f24e..e2fd10dcd05 100644
--- a/pkg/kubelet/kubelet.go
+++ b/pkg/kubelet/kubelet.go
@@ -16,6 +16,9 @@ limitations under the License.
 
 package kubelet
 
+// Note: if you change code in this file, you might need to change code in
+// contrib/mesos/pkg/executor/.
+
 import (
 	"errors"
 	"fmt"
diff --git a/plugin/pkg/scheduler/scheduler.go b/plugin/pkg/scheduler/scheduler.go
index 57d99cbfa2f..ac56c2461fb 100644
--- a/plugin/pkg/scheduler/scheduler.go
+++ b/plugin/pkg/scheduler/scheduler.go
@@ -16,6 +16,9 @@ limitations under the License.
 
 package scheduler
 
+// Note: if you change code in this file, you might need to change code in
+// contrib/mesos/pkg/scheduler/.
+
 import (
 	"time"