diff --git a/trunk/ConsoleDataMigration/common/Aes_define.h b/trunk/ConsoleDataMigration/common/Aes_define.h
index d6fadcb..68a4cc6 100644
--- a/trunk/ConsoleDataMigration/common/Aes_define.h
+++ b/trunk/ConsoleDataMigration/common/Aes_define.h
@@ -19,6 +19,12 @@
 //マスタリング用ビルド時に有効にする
 //#define USE_PROD_KEY
 
+#ifdef NN_BUILD_RELEASE
+#ifndef USE_PROD_KEY
+#warning !! Using Development Key on Release Build !!
+#endif
+#endif
+
 #include <nn/drivers/aes/CTR/ARM946ES/driverAes_Types.h>
 
 namespace common