diff --git a/backend.native/tests/external/build.gradle b/backend.native/tests/external/build.gradle
index 832464567f8..ed6cc93dc9a 100644
--- a/backend.native/tests/external/build.gradle
+++ b/backend.native/tests/external/build.gradle
@@ -1,5 +1,9 @@
 import org.jetbrains.kotlin.*
 
+/*******************************************************************************
+*      WARNING: This file auto generated with command 
+*      # ./gradlew  :backend.native:tests:regenerate_external_tests
+*******************************************************************************/
 configurations {
     cli_bc
 }